Dow v. Az Nsac ( 2023 )


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  •                                    IN THE
    ARIZONA COURT OF APPEALS
    DIVISION ONE
    DEFENDERS OF WILDLIFE, et al., Appellants,
    v.
    ARIZONA NAVIGABLE STREAM
    ADJUDICATION COMMISSION, et al., Appellees.
    No. 1 CA-CV 20-0295
    1 CA-CV 20-0296
    1 CA-CV 20-0297
    (Consolidated)
    FILED 2-7-2023
    Appeal from the Superior Court in Maricopa County
    Nos. LC2019-000102-001
    LC2019-000101-001
    LC2019-000100-001
    The Honorable Sigmund G. Popko, Judge Pro Tempore
    AFFIRMED IN PART; REVERSED IN PART
    COUNSEL
    Arizona Center for Law in the Public Interest, Phoenix
    By Jennifer B. Anderson 1, Daniel J. Adelman
    Counsel for Appellants Defender of Wildlife, Donald Steuter, Jerry Van Gasse,
    Jim Vaaler
    1Jennifer B. Anderson presented at oral argument but has since left the
    Arizona Center for Law in the Public Interest.
    Fennemore Craig, P.C., Phoenix
    By Sean Hood
    Co-Counsel for Appellee Freeport Minerals Corporation
    Snell & Wilmer L.L.P., Phoenix
    By L. William Staudenmaier
    Co-Counsel for Appellee Freeport Minerals Corporation
    Salmon, Lewis & Weldon, P.L.C., Phoenix
    By John B. Weldon, Jr., Mark A. McGinnis
    Counsel for Appellees Salt River Project Agricultural Improvement and Power
    District and Salt River Valley Water Users’ Association
    Engelman Berger, P.C., Phoenix
    By William H. Anger
    Co-Counsel for Appellee City of Mesa
    Mesa City Attorney’s Office
    By Wilbert J. Taebel
    Co-Counsel for Appellee City of Mesa
    City of Phoenix, Office of the City Attorney, Phoenix
    By Cris Meyer, Charles L. Cahoy
    Counsel for Appellee City of Phoenix
    Tempe City Attorney’s Office, Tempe
    By Judith R. Baumann, Megan H. Tracy
    Counsel for the Appellee City of Tempe
    Morisset, Schlosser, Jozwiak & Somerville APC, Seattle, Washington
    By Thane D. Somerville
    Counsel for Appellee Salt River Pima-Maricopa Indian Community
    Montgomery & Interpreter, PLC, Phoenix
    By Susan B. Montgomery, Robyn L. Interpreter, Jay M. Tomkus
    Counsel for Appellees Yavapai-Apache Nation and the Fort McDowell Yavapai
    Nation
    Office of General Counsel Gila River Indian Community, Sacaton
    By Linus Everling, Thomas L. Murphy
    Counsel for Appellee Gila River Indian Community
    2
    Perkins Coie LLP, Phoenix
    By Matthew L. Rojas, Andrea J. Driggs, Karl J. Worsham
    Counsel for Appellee Arizona Navigable Stream Adjudication Commission
    The Sparks Law Firm, P.C., Scottsdale
    By Joe P. Sparks, Laurel A. Herrmann
    Counsel for Appellee San Carlos Apache Tribe
    Gust Rosenfeld P.L.C., Phoenix
    By Scott A. Malm
    Counsel for Amicus Curiae Land Title Association of Arizona
    OPINION
    Presiding Judge David B. Gass delivered the opinion of the court, in which
    Judge Michael J. Brown and Judge David D. Weinzweig joined.
    G A S S, Judge:
    ¶1             The Arizona Navigable Stream Adjudication Commission
    (ANSAC) has resolved title for most of Arizona’s rivers based on
    navigability, finding all but the mighty Colorado to be nonnavigable. Three
    rivers remain, the Verde, the Salt, and the Gila. This appeal promises to be
    the last step in the streambed litigation, which began in the 1980s. As
    relevant to this case, ANSAC found 20 segments of the 3 rivers
    nonnavigable (6 segments of the Verde, 6 segments of the Salt, and 8
    segments of the Gila). Of the 20 segments, 17 are the subject of this appeal.
    ¶2            Long ago, Mikhail Lermontov wrote, “Many a calm river
    begins as a turbulent waterfall, yet none hurtles and foams all the way to
    the sea.” 2 We must decide whether the law and facts support ANSAC’s
    determination as affirmed by the superior court that no segment of three
    Arizona rivers ran sufficiently calm and deep to be navigable when Arizona
    became a state in 1912. 3 Ultimately, we affirm ANSAC’s finding of
    nonnavigability on 16 of the 17 segments challenged in this appeal, the only
    2 Mikhail Lermontov, A Hero of Our Time 117 (Dimitri Nabokov et al.
    trans., A.A. Knopf 1992) (1840).
    3 Absent material revisions after the relevant dates, statutes and rules cited
    refer to the current version unless otherwise indicated.
    3
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    exception being 1 segment of the Gila. We conclude that segment was
    navigable as a matter of law on February 14, 1912.
    FACTUAL AND PROCEDURAL HISTORY
    I.     History of the Rivers and Navigability Adjudications in Arizona
    ¶3           For millennia, the first peoples to live in Arizona—including
    the ancestors and current members of the sovereign tribal parties in this
    case—settled alongside Arizona’s rivers, relying on them to support their
    communities. And for hundreds of years, newcomers—like the Spanish and
    early American settlers—came to rely heavily on these rivers as well.
    ¶4           On February 14, 1912, Arizona joined the United States on
    equal footing with all states coming before it. Defenders of Wildlife v. Hull,
    
    199 Ariz. 411
    , 415, ¶ 2 (App. 2001). Arizona, thus, took title to the beds
    under all navigable waters in the state. See 
    id.
    ¶5            In 1987, Arizona’s legislature tried to resolve conflicting
    riverbed title claims by “relinquish[ing] most of the state’s interest in
    Arizona’s watercourse bedlands[,]” including the Verde, Salt, and Gila
    riverbeds. State ex rel. Winkleman v. Ariz. Navigable Stream Adjudication
    Comm’n, 
    224 Ariz. 230
    , 234–36, ¶¶ 3–7 (App. 2010). In 1992, after this court
    ruled the 1987 changes were unconstitutional, the legislature adopted the
    framework for resolving riverbed ownership by creating ANSAC and
    “charg[ing] it with the responsibility for determining which watercourses
    were navigable at statehood by hearing evidence presented by the Arizona
    State Land Department [(ASLD)] and the public.” Id. at 235, ¶ 5. In 1994 and
    1998, the Arizona legislature made further changes to ANSAC’s charge. Id.
    at 236, ¶ 7. Those later changes failed, in part, because they circumvented
    the federal legal standard for navigability. Id. at ¶ 8. Since then, ANSAC
    adjudicated the navigability of around 39,000 streams—finding none to be
    navigable. See Ariz. State Libr., Archives, & Pub. Recs., Arizona Navigable
    Stream     Adjudication    Commission      (ANSAC)      (July    15,   2019),
    https://azlibrary.gov/sla/agency_histories/arizona-navigable-stream-
    adjudication-commission-ansac.
    II.    Adjudicating the Navigability of the Verde, Salt, and Gila
    ¶6             After a series of hearings from 2003 to 2006, ANSAC
    determined all three rivers were nonnavigable, considering the upper and
    lower Salt separately and the Verde and the Gila in whole. The superior
    court vacated those determinations, concluding ANSAC failed to account
    for the effect of diversions and other human impacts. See Winkleman, 224
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    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    Ariz. at 241–42, ¶ 28 (holding ANSAC failed to evaluate lower Salt River in
    its “natural” condition).
    ¶7            On remand, ANSAC reopened the record and followed the
    United States Supreme Court’s decision in PPL Montana, LLC v. Montana,
    which said tribunals must evaluate a river’s navigability segment-by-
    segment. 
    565 U.S. 576
    , 594 (2012). ANSAC held another series of hearings
    between 2014 and 2016, during which the parties’ expert witnesses testified
    about the natural state of the waterways. The experts also detailed human
    usage of the three rivers—including trade and travel—long before, around,
    and after statehood.
    ¶8            Without objection, ANSAC adopted ASLD’s proposed
    segmentation of the rivers. To begin, ANSAC divided the Verde into six
    segments—beginning with segment 0 in the Verde’s headwaters at Sullivan
    Lake and ending with segment 5 in the southernmost portion of the river
    where the Verde joins the Salt. Next, ANSAC divided the Salt into six
    segments—beginning with segment 1 in the northernmost portion of the
    river and ending with segment 6 in the southernmost portion of the river
    where the Salt joins the Gila. Last, ANSAC divided the Gila into eight
    segments—beginning with segment 1 in the easternmost part of the Gila,
    where it enters Arizona from New Mexico, and ending with segment 8 in
    the westernmost part where the Gila joins the Colorado River in Yuma. The
    parties do not dispute the segmentation on appeal.
    ¶9            In 2018, a majority of ANSAC’s five-member board
    determined all the segments in the Verde, Salt, and Gila were nonnavigable
    at statehood. One member dissented.
    ¶10           Defenders of Wildlife (DOW)—the navigability proponent—
    unsuccessfully challenged ANSAC’s determinations in the superior court.
    This court has jurisdiction under article VI, section 9, of the Arizona
    Constitution, and A.R.S. §§ 12-120.21.A.1 and -2101.A.1.
    ANALYSIS
    ¶11          DOW challenges the sufficiency of the evidence to support the
    determinations. DOW also contends ANSAC failed to apply the correct
    legal standards when it determined the three rivers were nonnavigable.
    DOW and other parties also raise other issues related to the riverbeds’ title.
    We address these issues in turn.
    5
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    I.     Standard of Review and Burden of Proof
    ¶12            “On appeal from a superior court’s review of an
    administrative decision, [this court] must determine . . . whether the
    administrative action was illegal, arbitrary, capricious or involved an abuse
    of discretion.” Eaton v. Ariz. Health Care Cost Containment Sys., 
    206 Ariz. 430
    ,
    432, ¶ 7 (App. 2003); see also A.R.S. § 12-910.F. This court, however, reviews
    questions of law de novo, including whether ANSAC applied the
    appropriate legal test to the facts. See Eaton, 206 Ariz. at 432, ¶ 7.
    ¶13             If ANSAC applied the correct legal tests, navigability is
    usually a question of fact. Winkleman, 224 Ariz. at 238, ¶ 14 (citing Ariz. Ctr.
    for Law in the Pub. Int. v. Hassell, 
    172 Ariz. 356
    , 363 n.10 (App. 1991)). Because
    ANSAC is Arizona’s fact-finding agency for stream adjudications, this
    court will not substitute its judgment on matters of fact unless ANSAC’s
    findings are clearly erroneous. See Winkleman, 224 Ariz. at 238,
    ¶ 14. Instead, this court reviews “the record to determine whether
    substantial evidence supports [ANSAC’s] decision and whether [ANSAC]
    exercised its discretion reasonably and with due consideration.” Id. (citing
    Callen v. Rogers, 
    216 Ariz. 499
    , 502, ¶ 9 (App. 2007); Siegel v. Ariz. State Liquor
    Bd., 
    167 Ariz. 400
    , 401 (App. 1991)). But “[b]oth the standards and the
    ultimate conclusion [in navigability cases] invo[l]ve questions of law
    inseparable from the particular facts to which they are applied.” United
    States v. Appalachian Elec. Power Co., 
    311 U.S. 377
    , 404 (1940), superseded in
    part by statute as recognized in Rapanos v. United States, 
    547 U.S. 715
    , 723–34
    (2006). This court, thus, “may draw its own legal conclusions from facts
    found or inferred in the judgment and is not bound by findings of fact on
    mixed questions of law and fact.” Huskie v. Ames Bros. Motor & Supply
    Co., 
    139 Ariz. 396
    , 401 (App. 1984).
    ¶14           The legal standard does not impose a presumption for or
    against navigability. “ANSAC’s approach and analysis must be wholly
    impartial.” Winkleman, 224 Ariz. at 239, ¶ 18. But the proponent of
    navigability, DOW, bears the burden of proving a river segment navigable
    by a preponderance of the evidence. See id. at 238–39, ¶ 17.
    II.    Evidentiary Disputes
    ¶15            DOW argues ANSAC abused its discretion by improperly
    considering certain evidence while failing to consider other evidence in
    arriving at its decision on the navigability of the Verde, Salt, and Gila.
    Moving through DOW’s evidentiary challenges, we address four issues:
    (1) we first address if ANSAC erred by considering expert testimony about
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    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    boating from individuals not qualified to testify on that subject matter; (2)
    next, we decide whether ANSAC improperly relied on alleged “irrelevant
    evidence,” such as evidence of non-boating transportation, land grants, and
    land maps; (3) we then address the evidentiary weight of Arizona’s long
    delay in asserting title to the riverbeds of the Gila, Verde, and Salt on
    ANSAC’s navigability determinations; and (4) last, we decide whether
    ANSAC erred by “failing to consider” certain evidence relevant to the
    navigability of the three rivers, including ferry usage and the best evidence
    of the rivers’ ordinary and natural condition.
    A.     Expert Testimony and Qualifications
    ¶16           DOW argues ANSAC erred in considering certain expert
    testimony from persons not qualified as boating experts because their
    boating testimony was speculative. DOW adds the superior court erred in
    finding DOW waived these arguments by not objecting before ANSAC.
    ¶17           ANSAC must review and consider “all relevant historical and
    other evidence.” A.R.S. § 37-1123.A; see also Winkleman, 224 Ariz. at 243,
    ¶ 31 (“[T]he determination of the relevance and weight to be afforded the
    evidence is generally for ANSAC to make.”); Hull, 199 Ariz. at 425, ¶ 52. An
    agency, board, or commission conducting a hearing is not limited by
    evidentiary rules and has “exceptional discretion” to determine which
    witnesses may provide expert testimony. Lathrop v. Ariz. Bd. of Chiropractic
    Examiners, 
    182 Ariz. 172
    , 181 (App. 1995).
    ¶18            Even though the superior court found DOW may have
    waived the argument, it reached the merits. And we agree with the superior
    court’s merits analysis. To begin, DOW contended the testimony was
    unqualified because “opponent’s expert witnesses had [n]ever boated or
    tried to boat the Verde.” All parties agree all three rivers are not currently
    in the same ordinary and natural condition they were at statehood. It
    follows, then, whether an expert witness tried to boat one of the rivers today
    is immaterial to their expert qualifications and to navigability.
    ¶19           Moreover, DOW points to a portion of one expert’s testimony
    in which he did not explain the specific boats he envisioned in considering
    navigability on Verde segments. That same expert was a hydraulic
    engineering manager with 35-years’ experience consulting in hydrology
    and rivers. He studied the depth, dynamic geomorphic character,
    longitudinal variability, likelihood of periodic changes, vegetation, and
    ranges of flows of the Verde. And, in his third day of testifying, he detailed
    the types of boats in existence at statehood and their physical compositions.
    7
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    ¶20           We cannot say this expert was unqualified to discuss the
    rivers’ susceptibility to use by watercraft just because he lacked the moniker
    “boating expert,” and DOW cites no authority to the contrary. To the extent
    DOW asks us to reweigh evidence on appeal, we decline to do so. See
    Winkleman, 224 Ariz. at 242, ¶ 29.
    B.     Reliance on Federal Surveys, Land Patents, Land Grants,
    Maps, and Other Documents
    ¶21          DOW also contends ANSAC erred in relying on “irrelevant
    evidence,” including non-boating transportation, land grants, and land
    patents.
    ¶22            DOW argues this court in Hull precluded the use of non-
    boating transportation when determining nonnavigability. See 199 Ariz. at
    424–25, ¶¶ 47–48. DOW overstates Hull’s holding. Hull ruled ANSAC could
    not presume nonnavigability based on non-boating transportation in
    proximity to a watercourse, and ANSAC could not consider such evidence
    “highly probative.” Id.; see A.R.S. § 37-1128.D.8 (2000) (repealed). Though
    Hull rejected the “highly probative” standard, Hull acknowledged other
    courts found evidence of non-boating transportation relevant. 199 Ariz. at
    424–25, ¶¶ 47–48 (citing Monroe v. State, 
    111 Utah 1
     (Utah 1946); Lykes Bros.
    Inc. v. U.S. Army Corps of Eng’rs, 
    821 F. Supp. 1457
     (M.D. Fla. 1993), aff’d, 
    64 F.3d 630
     (11th Cir. 1995)). The Hull court did not say the evidence was
    irrelevant, and we decline to do so here.
    ¶23            DOW also argues ANSAC erred by relying on federal
    surveys, land patents, land grants, maps, and other documents because
    “there is no indication that the surveyors understood, let alone applied, the
    term ‘navigability’ as defined in The Daniel Ball and interpreted by federal
    and state courts.” 
    77 U.S. (10 Wall.) 557
    , 563 (1870).
    ¶24            True enough, surveyors “not clothed with power to settle
    questions of navigability” drew the land patents, land grants, and maps.
    Oklahoma v. Texas, 
    258 U.S. 574
    , 585 (1922). But the evidence is still relevant
    to ANSAC’s navigability assessment. See generally Ariz. R. Evid. 401
    (evidence is relevant if it tends to make a fact of consequence “more or less
    probable”). Other courts considering navigability-for-title have looked to
    comparable evidence from early surveyors to inform their factual analysis.
    See State v. Adams, 
    89 N.W.2d 661
    , 668–72 (Minn. 1957); Ryals v. Pigott, 
    580 So.2d 1140
    , 1171 (Miss. 1990) (Blass, J., dissenting); see also Lykes Bros., 
    64 F.3d at
    636 n.5.
    8
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    ¶25           The record shows no instance in which ANSAC relied on this
    evidence or considered it highly probative in making its determination, and
    we cannot say it is irrelevant to determining navigability. ANSAC did not
    abuse its discretion in considering this evidence.
    C.     Delay in Asserting Title to Riverbeds
    ¶26            Salt River Pima-Maricopa Indian Community argues
    Arizona’s delay in asserting title to the Verde, Salt, and Gila riverbeds is
    evidence of nonnavigability. But ANSAC made no finding the delay was at
    all probative. PPL Montana did note a state’s “long failure to assert title is
    some evidence to support the conclusion that the river segments were
    nonnavigable for purposes of the equal-footing doctrine.” 
    565 U.S. at 604
    .
    But as Hassell said, “[t]hat generations of trustees have slept on public rights
    does not foreclose their successors from awakening.” 172 Ariz. at 369.
    Arizona’s decades-long failure to assert title simply is not probative of
    navigability, and we find no error in ANSAC treating it as such.
    D.     Ignoring DOW’s Evidence
    ¶27          DOW argues ANSAC erred by disregarding evidence DOW
    brought forward to prove the rivers’ navigability. Under A.R.S. §§ 37-
    1123.A and -1128.A, ANSAC must consider all relevant evidence before it.
    See Winkleman, 224 Ariz. at 243, ¶ 31. This court will defer to ANSAC’s
    “determination of the relevance and weight [of] the evidence” when “the
    evidence has indicia of reliability.” Id.
    III.   The Navigability Test
    ¶28            Arizona holds title to all riverbeds if the river was navigable
    at the time of statehood. Hassell, 172 Ariz. at 359–60. Arizona must apply
    the federal Daniel Ball test to determine whether a river was navigable
    under the equal-footing doctrine. Hull, 199 Ariz. at 419, ¶¶ 16–17 (citing
    Hassell, 172 Ariz. at 362; The Daniel Ball, 
    77 U.S. (10 Wall.) 557
    ); PPL Montana,
    
    565 U.S. at 592
    . The test is whether the river was “navigable in fact” at
    statehood. Hull, 199 Ariz. at 419, ¶¶ 16–17 (quoting The Daniel Ball, 77 U.S.
    (10 Wall.) at 563). Rivers are “navigable in fact when they are used, or are
    susceptible of being used, in their natural and ordinary condition, as
    highways for commerce, over which trade and travel are or may be
    conducted in the customary modes of trade and travel on water.” See United
    States v. Utah (Utah I), 
    283 U.S. 64
    , 76 (1931); see also The Daniel Ball, 77 U.S.
    (10 Wall.) at 563.
    9
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    ¶29           Arizona state law reflects the Daniel Ball test, though its
    wording is slightly different. Under A.R.S. § 37-1101.5, a navigable river for
    purposes of title means a river “in existence on February 14, 1912, and at
    that time was used or was susceptible to being used, in its ordinary and
    natural condition, as a highway for commerce, over which trade and travel
    were or could have been conducted in the customary modes of trade on
    water.”
    ¶30             Even if a parsing of the words in Arizona’s statute might yield
    a different result than under the federal Daniel Ball test, the federal test
    controls. See Hull, 199 Ariz. at 418–20, ¶¶ 14–16, 21. Arizona cannot expand
    the federal navigability test because doing so would allow Arizona to take
    title to rivers not navigable at statehood. See PPL Montana, 
    565 U.S. at 603
    (explaining “federal law determines riverbed title under the equal-footing
    doctrine”). Arizona also cannot narrow the navigability test because doing
    so would have Arizona abandon its title to rivers in violation of Arizona’s
    trust obligations. See Winkleman, 224 Ariz. at 234–35, ¶¶ 3–4 (citing Hassell,
    172 Ariz. at 359–60, 364–65, 369–72).
    IV.    Applying the Navigability Test
    ¶31            DOW argues ANSAC misapplied navigability throughout
    these proceedings. To determine whether ANSAC “applied the proper
    legal tests to the facts presented” and “exercised its discretion reasonably
    and with due consideration,” we consider if ANSAC meets each essential
    component of the navigability test in turn. See Winkleman, 224 Ariz. at 238,
    ¶ 14–15.
    ¶32           From the words of the test and navigability precedent, we
    discern five essential components:
    1.     The river’s ordinary and natural condition at the time of
    statehood. PPL Montana, 
    565 U.S. at 592
    ; Winkleman, 224 Ariz.
    at 241–42, ¶ 28.
    2.     The types of commerce, in terms of both trade and travel,
    contemplated at statehood. PPL Montana, 
    565 U.S. at 600
    .
    3.     The customary modes of trade and travel on water at
    statehood. 
    Id. at 601
    .
    4.     Actual navigation of the river, before and after statehood.
    Utah I, 
    283 U.S. at
    11–12.
    10
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    5.     The river’s susceptibility to use as a highway for commerce at
    the time of statehood, assuming the river had been in its
    ordinary and natural condition. PPL Montana, 
    565 U.S. at
    600–
    01.
    ¶33            ANSAC must determine navigability for each river segment,
    not the entire river. See 
    id. at 593
    . Because of geographical variations in river
    conditions, commerce, modes of transportation, and actual navigation,
    ANSAC must consider each of the essential components on a segment-by-
    segment basis. See 
    id. at 601
    . ANSAC, however, may conclude certain
    components—for instance, customary craft—do not significantly vary
    along a river. See 
    id.
     ANSAC need not necessarily make express findings on
    each component, for each segment, but it must at least demonstrate it has
    considered all the components and the evidence material to them. See
    Winkleman, 224 Ariz. at 240, ¶ 22.
    ¶34          DOW argues ANSAC erred as a matter of law in applying
    each component. We address DOW’s arguments as to each component in
    turn, combining our review of actual use and susceptibility because DOW’s
    arguments on those components are interrelated.
    A.     Ordinary and Natural Condition
    ¶35           ANSAC had to consider what each river was like or would
    have been like at statehood in its ordinary and natural condition.
    Winkleman, 224 Ariz. at 241, ¶ 28; cf. United States. v. Holt State Bank, 
    270 U.S. 49
    , 56–57 (1926). Evidence of a river’s natural flow, obstacles, and channel
    characteristics—specifically width and depth—is relevant to the analysis.
    Oklahoma, 
    258 U.S. at 589
    ; Utah I, 
    283 U.S. at
    84–87.
    ¶36           The best evidence of a river’s natural condition is from
    periods without significant man-made diversions and obstructions.
    Winkleman, 224 Ariz. at 242, ¶ 30 (recognizing the Salt was in its natural
    condition in the 1800s, after Hohokam diversions largely ceased, until
    modern settlement began). ANSAC may consider evidence of the river’s
    condition during other periods—though it may have “minimal probative
    value”—but ANSAC must account for the effect of human impacts on the
    river’s characteristics. Id. at 241–43, ¶¶ 28, 31.
    ¶37            DOW argues ANSAC erred when it disregarded the “best
    evidence” of the rivers’ ordinary and natural condition from the period
    after significant Native American diversions ceased but before significant
    impacts from Euro-American settlers began. Because ANSAC did consider
    this evidence, we disagree. ANSAC generally considered historical
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    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    accounts and streamflow measurements from that period, and it considered
    how natural forces (namely floods) and human impacts had changed the
    rivers by the time of statehood and afterwards. ANSAC also generally
    considered expert estimates of what streamflow would have been at the
    time of statehood absent human impacts.
    ¶38           DOW admits ANSAC considered “extensive historical
    evidence” from the 1800s but argues ANSAC “trivializ[ed] and
    disregard[ed] this evidence.” To the extent DOW contends ANSAC erred
    in weighing the evidence or considering other evidence, the law required
    ANSAC to consider all relevant evidence. See Winkleman, 224 Ariz. at 243,
    ¶ 31; see also A.R.S. §§ 37-1123.A (“all evidence”), -1128.A (“all relevant
    evidence”). And this court must defer to ANSAC’s determination of the
    evidence’s relevancy when it has indicia of reliability. See id.; see also A.R.S.
    §§ 37-1123.A, –1128.A. Except for segment 8 of the Gila, we generally find
    no error in ANSAC’s application of the ordinary-and-natural-condition
    component of the navigability test.
    B.     Highway for Commerce
    ¶39            In determining navigability, ANSAC must consider “the
    kinds of commercial use,” in terms of both trade and travel, “that, as a
    realistic matter, might have occurred at the time of statehood.” PPL
    Montana, 
    565 U.S. at 600
    . Relevant evidence includes the types of industries
    and trades in the vicinity of the river, the demand for personal
    transportation, and the geographical context, such as where goods and
    people were going and how they got there. See, e.g., Holt State Bank, 
    270 U.S. at 57
     (noting settlements used a lake connected to navigable rivers “in
    sending for and bringing in their supplies”); Oklahoma, 
    258 U.S. at 583
    , 589–
    90 (noting shipping boats ceased operating after railroads were constructed
    in the vicinity about 30 years before statehood). But see Utah I, 
    283 U.S. at 83
    (explaining potential future profitable use may be relevant when
    exploration and settlement explain a lack of commercial demand at
    statehood).
    ¶40            ANSAC made findings about the types of commercial trade
    and travel contemplated at statehood for the Verde and Gila, but not the
    Salt. For both the Verde and the Gila, ANSAC listed transport of military
    supplies, mining materials, and agricultural goods as well as travel and
    transport of people as contemplated forms of commerce. For the Gila,
    ANSAC also found people contemplated trapping and hunting. ANSAC,
    however, made no findings about the types of commerce contemplated for
    the Salt. Instead, ANSAC said the Salt “was not actually used as a ‘highway
    12
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    of commerce.’” ANSAC’s lack of findings regarding commerce
    contemplated on the Salt takes away from its findings about customary
    craft used on the Salt, which in turn gives DOW ammunition for its
    argument.
    ¶41           DOW contends ANSAC “misconstrued the ‘highway for
    commerce’ requirement” by focusing on whether the rivers were or could
    have been used for “commercial” purposes, and if such purposes were
    profitable. DOW posits “highway for commerce” encompasses either trade
    or noncommercial travel. We begin with the commerciality analysis, then
    turn to profitability.
    1.      Commerciality
    ¶42            Contrary to DOW’s argument, the navigability test does not
    contemplate noncommercial travel. Though the United States Supreme
    Court did not grant certiorari in PPL Montana to address the “highway for
    commerce” component of the federal navigability test, it did clarify a
    “highway for commerce” must have an element of “commercial reality.”
    
    565 U.S. at
    602–03. We agree with the Utah Supreme Court’s formulation:
    “the touchstone of navigability is commercial utility.” Utah Stream Access
    Coal. v. Orange St. Dev., 
    416 P.3d 553
    , 560, ¶ 29 (Utah 2017); see also Utah I,
    
    283 U.S. at 81
    ; The Daniel Ball, 77 U.S. (10 Wall.) at 560 (noting a river can be
    “a highway for commerce” and navigable). When a navigability
    determination is based on actual travel or susceptibility to travel, the travel
    must be for a commercial purpose, not just for recreation or other personal
    reasons. See Utah Stream Access Coal., 416 P.3d at 560, ¶ 29; see also Alaska v.
    Ahtna, Inc., 
    891 F.2d 1401
    , 1404 (9th Cir. 1989). Even so, courts have
    recognized “commercial activity” can be broad enough to encompass the
    “recreation industry.” Ahtna, 
    891 F.2d at 1405
    . But “commercial activity”
    cannot be so broad as to include noncommercial travel. PPL Montana, 
    565 U.S. at
    602–03. For example, self-guided recreational boating trips are not
    commercial use, but the Forty-Niner trips down the Gila to get to California
    (discussed in infra ¶ 91) were. See Utah v. United States (Utah II), 
    403 U.S. 9
    ,
    11 (1971).
    ¶43           To the extent Hull suggested noncommercial travel could
    suffice, we disagree. See 199 Ariz. at 421, ¶ 28. Such a holding would depart
    from Utah II. In Utah II, the United States Supreme Court upheld a
    navigability determination for the Great Salt Lake because ranchers used
    the lake to haul cattle and sheep. 430 U.S. at 11. Because livestock hauling
    was “done by owners and ‘not by a carrier for the purpose of making
    13
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    money,’” the Hull court determined the federal test did not turn on
    commercial use. 199 Ariz. at 421, ¶ 28 (quoting Utah II, 430 U.S. at 11).
    ¶44           Contrary to Hull’s suggestion, Utah II did not find the
    livestock owners used the lake for noncommercial purposes. Indeed, the
    United States Supreme Court said “people who performed ranching
    operations” used the lake. Utah II, 430 U.S. at 11. And the Court did not say
    commercial use was irrelevant. Id. Instead, the Court said it was irrelevant
    “the business of the boats was ranching and not carrying water-borne
    freight.” Id.
    ¶45           DOW misplaces its reliance on Utah I and Utah II to support
    its noncommercial travel argument. Neither Utah I nor Utah II say
    susceptibility to noncommercial use was enough to establish navigability.
    Utah I simply says limited, noncommercial use is relevant evidence of
    whether “rivers are . . . capable of commercial use.” 
    283 U.S. at 82
    . And, as
    explained in the previous two paragraphs, Utah II simply says any
    commercial purpose will suffice. See 
    403 U.S. at 11
    . Put simply, neither
    Utah I nor Utah II articulated a bright-line rule that noncommercial travel
    establishes navigability per se. Instead, both cases highlight how limited
    commercial and noncommercial uses can factor into a river’s susceptibility
    to commercial use.
    ¶46            The commerciality requirement tracks both the federal test
    and Arizona’s statutory corollary. Both the federal test and Arizona’s test
    use the conjunction “and.” The federal navigability-for-title test looks for
    use or susceptibility “as highways for commerce, over which trade and
    travel are or may be conducted.” The Daniel Ball, 77 U.S. (10 Wall.) at 563
    (emphasis added). In Arizona, a “‘navigable watercourse’ means a
    watercourse” used or susceptible to use “as a highway for commerce, over
    which trade and travel were or could have been conducted.” A.R.S. § 37-
    1101(5) (emphasis added). Though some courts have interpreted the phrase
    “trade and travel” as disjunctive, rather than conjunctive, we need not reach
    that issue. See Utah Stream Access Coal., 416 P.3d at 560, ¶ 32. Indeed, the
    conjunctive-disjunctive dichotomy is a red herring in the navigability-for-
    title context, as demonstrated by a close review of Arizona’s definition of
    “highway for commerce.”
    ¶47           Arizona defines a “highway for commerce” as “a corridor or
    conduit within which the exchange of goods, commodities or property or
    the transportation of persons may be conducted.” A.R.S. § 37-1101(3)
    (emphasis added). Arizona cannot enlarge the federal navigability-for-title
    test by using noncommercial travel to establish navigability because doing
    14
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    so would vest title to Arizona in rivers that were not navigable at statehood.
    See supra ¶ 29. As a result, to accord with the federal test, a highway for
    commerce, as defined in A.R.S. § 37-1101(3), must be based on “the
    transportation of persons” for commercial reasons. See Blake v. Schwartz, 
    202 Ariz. 120
    , 122, ¶ 10 (App. 2002) (citing State v. McDonald, 
    191 Ariz. 118
    , 120
    (App. 1997)) (“If possible, this court has a duty to construe a statute so that
    it will be constitutional.”).
    ¶48           Interpreting “travel,” under federal law, and “the
    transportation of persons,” under Arizona law, to require a commercial
    purpose obviates the dichotomy between “trade and travel” and “trade or
    travel.” Once we view the navigability-for-title test through the lens of
    “commercial utility,” the conjunctive-disjunctive debate becomes a
    distinction without a difference.
    ¶49          In short, travel in the navigability-for-title context
    encompasses commercial travel. ANSAC did not legally err by requiring
    use or susceptibility for commercial purposes.
    2.     Profitability
    ¶50            DOW correctly argues the navigability-for-title analysis does
    not require a “profitable” commercial enterprise. On this account, we agree
    with Hull and need not revisit the issue here. See 199 Ariz. at 422, ¶ 34. But
    Hull dealt with legislative presumptions and held navigability cannot hinge
    on profitability. Id.; see A.R.S. § 37-1128.D.2 (2000) (repealed). ANSAC did
    not err in considering profitability. Indeed, ANSAC rarely discussed
    profitability and most references were direct quotes from DOW’s expert.
    ¶51            Though Hull rejects a profitability requirement, it does not
    prohibit ANSAC from considering profitability when determining what
    constitutes commerce. Profitability may be probative of whether
    navigability is a “commercial reality.” See generally Ariz. R. Evid. 401, 402;
    A.R.S. § 37-1123.A (directing ANSAC to receive, review, and consider all
    relevant evidence). And considering DOW offered expert testimony on
    profitability, DOW seems to believe it is probative as well. ANSAC did not
    err in admitting and considering testimony on profitability as part of its
    navigability analysis.
    C.     Customary Modes of Trade and Travel on Water
    ¶52           ANSAC had to consider the customary modes of trade and
    travel used or that could have realistically been used for the types of
    commerce contemplated on the river at statehood. See PPL Montana, 565
    15
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    U.S. at 602–03; Ahtna, Inc., 
    891 F.2d at 1405
    . Customary modes may differ
    for trade and travel. Utah I, 
    283 U.S. at 82
    . For instance, determining
    steamboats could not have navigated a river to ship ore is not probative of
    whether rowboats might have transported people. Cf. Oregon v. Riverfront
    Prot. Ass’n, 
    672 F.2d 792
    , 795–96 (9th Cir. 1982) (considering whether river
    was navigable for “log drives”).
    ¶53            DOW asserts ANSAC erred because it did not find the rivers
    were navigable by small, low-draft watercraft, and in so doing, erroneously
    required the rivers be navigable by large commercial vessels. We agree
    ANSAC erred in this respect for segment 8 of the Gila (see infra § V-D), but
    not for the Verde, the Salt, or segments 1 through 7 of the Gila.
    ¶54            ANSAC did not treat segments as “presumptively non-
    navigable” based on the lack of large, commercial boating. See Hull, 199
    Ariz. at 422–23, ¶¶ 35–37 (quoting A.R.S. § 37-1128.D.3 (2000) (repealed)).
    For the Verde and Salt, ANSAC made findings about the watercraft
    customarily used at the time of statehood. For the Verde, ANSAC found
    various small boats and larger steamboats would have been customary, but
    those boat types “would need a dependable and reliable draft of around
    two feet.” ANSAC found there was not enough water in the river for
    reliable navigation by rowboats and the like. The record reasonably
    supports those findings.
    ¶55            For the Salt, ANSAC found at statehood that larger boats such
    as “keelboats, steamboats, and mountain boats” would have been typical
    for commercial trade and travel. ANSAC based its finding on expert
    testimony about how canoes and other smaller boats were no longer
    customary for commercial cargo hauling or passenger transportation by the
    time of statehood. DOW correctly points out the record does not indicate
    whether ANSAC considered if small boats might have been used on the Salt
    for other commercial purposes, namely hunting and trapping, despite
    evidence DOW cites showing multiple trappers used segment 6 in the
    1890s. ANSAC’s analysis also does not discuss the types of commerce
    contemplated on the Salt at statehood despite finding that hunting and
    trapping were contemplated on the Gila at statehood. See infra § V-B. We,
    however, conclude this gap in ANSAC’s analysis of the Salt does not merit
    reversal because of our standard of review. See infra § V-B.
    ¶56            As for the Gila, ANSAC made no express finding about
    whether small boats were customarily used at the time of statehood. We
    address the oversight below. See infra § V-D. Ultimately, we conclude the
    viability of small boats is not significant for segments 1 through 7 of the
    16
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    Gila, but it is a significant component in our conclusion segment 8 was
    navigable in fact at statehood. See infra § V-D.
    D.      Actual Use
    ¶57            ANSAC must consider evidence of actual use, before, around,
    or after the time of statehood. See, e.g., Utah II, 
    403 U.S. at 12
    ; Utah I, 
    283 U.S. at 82
    ; PPL Montana, 
    565 U.S. at
    602–03. The river’s use as a highway for
    commerce at those times is persuasive evidence. Utah I, 
    283 U.S. at 82
    .
    Evidence of other types of use still may prove susceptibility. 
    Id.
     The
    analysis, thus, focuses on the characteristics of the boats used and the river’s
    condition. See PPL Montana, 
    565 U.S. at
    602–03; see, e.g., United States v. State
    of Oregon, 
    295 U.S. 1
    , 20–21 (1935).
    ¶58           Here, ANSAC considered evidence of historical and modern
    boating for all three rivers. For the Verde and Gila, ANSAC made findings
    about how watercraft and river conditions compared to customary craft
    and ordinary and natural river conditions at the time of statehood. For the
    Salt, ANSAC made similar findings about modern boating. As to historical
    boating, ANSAC said only “there [w]ere instances of historic navigation
    under unique circumstances or within brief windows of time” and the Salt
    “was never used for any type of regular trade or travel.” Still, DOW
    correctly points out the record contains a handful of accounts about
    successful downstream trips between the late 1800s and 1919 on segments
    3 through 5 and more than a dozen such accounts on segment 6. For
    segment 6, those trips included navigation throughout the year. We agree
    ANSAC’s characterization of the trips as occurring “within brief windows
    of time” is not quite accurate. But we find no abuse of discretion because
    the record supports ANSAC’s finding historical use was not “regular.”
    E.      Susceptibility to Use
    ¶59              The Daniel Ball test required ANSAC to consider whether a
    river in its ordinary and natural condition at the time of statehood was
    susceptible for use as a highway for commerce. Utah I, 
    283 U.S. at 82
    .
    ANSAC had to address whether it would have been commercially realistic
    for customary craft to navigate the river. See PPL Montana, 
    565 U.S. at 601
    .
    ANSAC could base its determination on a comparison of the river’s
    condition and the operating requirements of customary craft. See, e.g., Utah
    I, 
    283 U.S. at 85
    ; see also, e.g., Utah II, 
    403 U.S. at 12
    . In the alternative, or in
    addition, ANSAC could base its determination on evidence of actual
    navigation. See PPL Montana, 
    565 U.S. at 601
    ; see, e.g., Utah I, 
    283 U.S. at 82
    ;
    see also, e.g., Ahtna, Inc., 
    891 F.2d at 1405
    . Because the proper application of
    17
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    the Daniel Ball test is a question of law, this court reviews the issue de novo.
    See Winkleman, 224 Ariz. at 238, ¶ 15.
    ¶60           DOW contends ANSAC erred by failing to treat evidence of
    irregular historic use as evidence of navigability and by misapplying the
    law with respect to seasonal navigability. We address these arguments in
    turn.
    1.     Irregular Historical Use
    ¶61           DOW contends ANSAC erred by overvaluing evidence the
    rivers were not actually used as highways for commerce by implicitly
    requiring that actual use be “commercially realistic” to support a
    navigability determination. As to the Verde, DOW’s argument
    misconstrues ANSAC’s decision. ANSAC’s analysis of the Salt and Gila are
    closer calls.
    ¶62           For the Verde, ANSAC considered both actual use and
    susceptibility, recognizing the distinction. ANSAC did not conclude the
    Verde was nonnavigable solely because historic navigation was irregular
    or commercially unrealistic. Instead, ANSAC concluded navigability
    would have been too sporadic to be a “commercial reality” at the time of
    statehood. ANSAC based its conclusion not just on the scarcity and
    irregularity of historic navigation, but also on the Verde’s ordinary and
    natural condition at statehood, the commercial context, and the customary
    craft operating at the time of statehood. Because commercial use is relevant,
    we cannot conclude ANSAC erred by finding a lack of commercial use
    weighed against a navigability finding. See Utah I, 
    283 U.S. at 82
    . Though
    DOW disagrees with the weight ANSAC assigned to the historical boating
    evidence, this court cannot reweigh the evidence or substitute its judgment
    for ANSAC’s. See Winkleman, 224 Ariz. at 242, ¶ 29.
    ¶63           For the Salt, ANSAC misconstrued the susceptibility
    component of the Daniel Ball test. In analyzing the Salt’s susceptibility to
    commercial navigation, ANSAC said people “simply failed to comprehend
    the potential usefulness of the [r]iver as an avenue for navigation.”
    ¶64           ANSAC’s analysis focused on actual and regular commercial
    use, implying it might be a prerequisite to navigability, at least in the
    presence of sufficient commercial demand. DOW argues ANSAC erred
    because well-established jurisprudence illustrates people need not have
    used a river as a highway for commerce for the river to be navigable. A river
    segment is navigable either if it was used or if it “[was] susceptible of being
    used” as a highway of commerce at the time of statehood. PPL Montana, 565
    18
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    U.S. at 600 (quoting Utah I, 
    283 U.S. at 76
     (quoting The Daniel Ball, 77 U.S.
    (10 Wall.) at 563)); see also Nw. Steelheaders Ass’n v. Simantel, 
    112 P.3d 383
    ,
    389 (Or. Ct. App. 2005). This point is true regardless of the commercial
    demands in the area before statehood because the relevant period for
    analyzing commercial demands is the time of statehood. See PPL Montana,
    
    565 U.S. at 600
    ; see also Utah I, 
    283 U.S. at 82
    . True, ANSAC could not
    presume actual and regular commercial use was a prerequisite to
    navigability. Still the record reasonably supports ANSAC’s nonnavigability
    determination. ANSAC weighed the evidence, including the dearth of
    evidence showing actual use in a populated area.
    ¶65            ANSAC found the Gila would have been used for commerce
    if it had been susceptible for such use. ANSAC in fact rejected ASLD’s
    arguments about people preferring to travel by wagon or train, for cost,
    convenience, and capacity. But the record does not fully explain why. First,
    ANSAC was particularly concerned with the Gila’s non-use for mining
    purposes. That lack of mining use was not particularly probative of
    segment 8’s navigability, because the mines would either need to transport
    ore on segments 2 through 7 (which ANSAC found were not navigable) or
    haul ore hundreds of miles by wagon to Dome (only to boat 15 miles or so
    to Yuma). And just because the Gila was not a highway for shipping “tons
    of ore” is not particularly probative of whether trappers and hunters might
    have used the Gila to transport themselves and their pelts to and from the
    hunting and trapping grounds.
    ¶66            Second, ANSAC’s susceptibility analysis was somewhat
    flawed. Navigability precedent does not stand for the proposition that if
    commercial use is not found, susceptibility also will not be found. Utah I
    stands for the inverse proposition—commercial use may be the most
    persuasive evidence of susceptibility. See Utah I, 
    283 U.S. at 82
    . In fact,
    Utah I expressly recognizes commercial use may not develop before the
    time of statehood, so the absence of commercial use does not preclude a
    susceptibility finding. See 
    id.
     As explained above, Arizona’s territory before
    statehood fits within that scenario. Though the error is problematic for all
    three rivers, the effect of this error on Gila’s segment 8 requires reversal
    because of segment 8’s unique situation. See infra § V-D. As to the other
    segments, sufficient evidence supports ANSAC’s findings such that it did
    not abuse its discretion.
    2.     Actual Use and Nonuse
    ¶67           DOW argues ANSAC’s focus on actual use rendered the
    susceptibility prong a nullity. We disagree.
    19
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    ¶68           Though actual use cannot subsume susceptibility, the United
    States Supreme Court in PPL Montana recognized actual use, including
    “[e]vidence of recreational use . . . may bear upon susceptibility of
    commercial use at the time of statehood.” 
    565 U.S. at
    600–01; see also Utah I,
    
    283 U.S. at 82
    . Actual use is not dispositive. See Utah I, 
    283 U.S. at 82
    .
    ¶69           Though DOW highlights several sections of ANSAC’s
    decisions discussing actual use in determining susceptibility, DOW fails to
    recognize susceptibility is not severable from the greater navigability
    context. Whether a river segment is susceptible to navigation depends on
    the rest of the Daniel Ball test—the natural and ordinary condition of the
    river segment and what constituted commerce at and around statehood.
    ¶70           Consistent with this framework, ANSAC did not rely solely
    on actual use when making its susceptibility analysis. Instead, ANSAC
    considered the voluminous record to determine: the types of commerce at
    statehood; the rivers’ physical characteristics, geomorphology, and
    hydrology; and actual use during various historical periods—all of which
    bore on susceptibility. And ANSAC discussed actual use in the context of
    exploration, settlement, and commercial needs, seeking an explanation as
    to why people had not actually used a segment for commerce if that
    segment was susceptible to commercial use.
    ¶71            Because actual use may be the “most persuasive” component
    in the susceptibility analysis, we cannot say ANSAC abused its discretion
    by relying heavily—but not exclusively—on nonuse. See Winkleman, 224
    Ariz. at 243, ¶ 31 (“[T]he relevance and weight to be afforded the evidence
    is generally for ANSAC to make.”). Though DOW brought forth evidence
    to explain nonuse, ANSAC considered DOW’s explanation unconvincing.
    The weight ANSAC places on evidence influencing susceptibility goes to
    whether ANSAC properly applied the navigability test. Except as to
    segment 8 of the Gila, it did.
    3.     Seasonal Navigability
    ¶72            A river may be navigable even if it is not susceptible to
    commercial use all the time or even most of the time. Susceptibility need
    only be persistent and regular enough to make navigation “a commercial
    reality.” PPL Montana, 
    565 U.S. at
    602–03; Utah I, 
    283 U.S. at
    87 n.12.
    Seasonal navigability is sufficient to establish navigability in fact, even if
    the season is short but still ordinary and long enough to make commercial
    use realistic. Compare Oklahoma, 
    258 U.S. at 591
     (explaining navigability
    cannot be “confined to the irregular and short periods of temporary high
    20
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    water”) with Econ. Light & Power Co. v. United States, 
    256 U.S. 113
    , 122 (1921)
    (explaining navigation need not “be open at all seasons of the year, or at all
    stages of the water”); see also Riverfront Prot. Ass’n, 672 F.2d at 795.
    ¶73            DOW argues ANSAC failed to recognize periodic navigation
    can support navigability. Contrary to DOW’s argument, ANSAC did not
    impose a requirement of constant navigability. But it did reject navigation
    “so brief that it . . . is not a commercial reality, requiring more than
    [o]ccasional use in exceptional times.” ANSAC characterized the three
    rivers’ flows as “erratic,” “highly variable,” and fluctuating between flood,
    even flow, and dryness. Those findings were relevant to whether boating
    would be commercially realistic. DOW also faults ANSAC for considering
    whether historical trips took place during a period of “high flows.” But
    river conditions during boat trips are relevant and necessary to determine
    whether actual use supports the susceptibility determination. See PPL
    Montana, 
    565 U.S. at 601
    . Because ANSAC received competing evidence on
    the natural and ordinary condition of the rivers and what constituted
    realistic commerce at statehood, we cannot say ANSAC misapplied the law
    with respect to seasonal navigability.
    V.     Sufficiency of the Evidence
    ¶74           DOW argues substantial evidence does not support ANSAC’s
    nonnavigability findings for segments 1 through 5 of the Verde, segments
    3 through 6 of the Salt, and all segments of the Gila. “[T]his court considers
    the river on a segment-by-segment basis to assess whether the segment of
    the river, under which the riverbed in dispute lies, is navigable or not.” PPL
    Montana, 
    565 U.S. at 577
    . Here, no party disputes ANSAC’s segmentation.
    ¶75            “In reviewing the superior court’s ruling affirming an
    agency’s order, [this court] ‘independently examines the record to
    determine whether the evidence supports the judgment,’ under a
    preponderance of the evidence standard.” Parsons v. Ariz. Dep’t of Health
    Servs., 
    242 Ariz. 320
    , 322, ¶ 10 (App. 2017) (quoting Webb v. State ex rel. Ariz.
    Bd. of Med. Exam'rs, 
    202 Ariz. 555
    , 557, ¶ 7 (App. 2002)). Substantial evidence
    exists when the record supports the agency’s decision, “even if the record
    also supports a different conclusion.” Gaveck, Ariz. State Bd. of Podiatry
    Exam’rs, 
    222 Ariz. 433
    , 436, ¶ 11 (App. 2009). This court views the evidence
    in a “light most favorable to upholding the [agency’s] decision and will
    affirm if any reasonable interpretation of the record supports the decision.”
    Lewis v. Ariz. State Pers. Bd., 
    240 Ariz. 330
    , 334, ¶ 15 (App. 2016) (citing Baca
    v. Ariz. Dep’t of Econ. Sec., 
    191 Ariz. 43
    , 46, ¶ 6 (App. 1997)).
    21
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    A.     The Verde
    ¶76           Citing evidence of historical use, DOW argues ANSAC erred
    by finding segments 1 through 5 of the Verde nonnavigable. Because
    substantial evidence supports ANSAC’s findings of nonnavigability, we
    disagree.
    ¶77            ANSAC found segments 1 through 5 nonnavigable based on
    the following factual findings: (1) unpredictable flooding caused persistent
    channel changes; (2) seasonal periods of high flows; (3) a lack of historical
    use as a highway for commerce; (4) federal survey evidence and federal
    patent evidence; (5) historical descriptions of the Verde as well as its
    hydrology and geomorphology; (6) differences in modern boats; and
    (7) river obstacles.
    ¶78            Those findings are sufficient to support ANSAC’s
    nonnavigability determinations for all five segments. ANSAC cited experts’
    estimates of median river depths, based on undepleted flows, of less than
    two feet for segments 1 through 5. ANSAC found boats readily available at
    the time of statehood, like flat-bottom fishing boats and rowboats, would
    need “around two feet.” ANSAC also cited evidence of natural rapids of
    Class II grade in segments 1, 2, and 5, Class III grade in segment 4, and Class
    IV grade in segment 3. DOW has not challenged these specific findings,
    which are plainly sufficient to establish even the smallest boats would not
    have been able to reliably navigate the Verde. DOW cites other evidence
    favoring navigability, asserting that evidence was “far more than a
    preponderance.” But we must affirm ANSAC’s determination because the
    record supports it, even if sufficient evidence supports a contrary
    conclusion.
    B.     The Salt
    ¶79          DOW next argues ANSAC erred when it found segments 3
    through 6 of the Salt nonnavigable because evidence about historical
    boating and customary craft compelled a navigability finding. We disagree.
    ¶80           ANSAC concluded the Salt was not navigable because natural
    impediments to navigation “would require portages” because of the
    irregularity of historic use, and because modern boating evidence was
    unpersuasive given dissimilarities in boat durability. Even so, ANSAC’s
    analysis of historical boating on the Salt is not comprehensive. See supra
    §§ IV-C, IV-E. Because DOW premises its argument on historic boating
    evidence and customary craft, rather than modern boating, the remaining
    22
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    issue is whether the record supports ANSAC’s conclusion segments 3
    through 6 required portage.
    ¶81           ANSAC described segments 5, 6, and parts of segment 3 as
    wide, shallow, and extensively braided. ANSAC also noted “bars” in
    segment 6. ANSAC further noted hydrological records showing the Salt
    flowed erratically, “fluctuating between flood, even flow, and dryness.”
    ANSAC cited evidence of natural Class II rapids in segments 3 through 5
    and shallow riffles in segment 6. ANSAC also cited evidence showing,
    before statehood, federal surveyors described the Salt as shallow and did
    not note characteristics of navigability in their surveys. And ANSAC noted
    federal land grants did not depict the Salt as navigable.
    ¶82           DOW points to evidence that could sustain an opposite
    conclusion. The record suggests Class II rapids are navigable, “without
    scouting,” with only “occasional maneuvering.” ANSAC’s analysis did not
    say sandbars, riffles, rapids, or fluctuating river flows would have served
    as portage-like barriers to commercial navigation on the Salt. See Utah I, 
    283 U.S. at
    85–87. DOW also argues the navigability conclusions of surveyors
    and federal agencies are not particularly probative as they are not “clothed
    with power to settle questions of navigability.” See Oklahoma, 
    258 U.S. at 585
    . And their observations of “shallowness” are too vague to be useful in
    determining whether the segments might be navigable by low-draft boats.
    Assuming small boats were customary at the time of statehood, the record
    suggests operating depths of one to two feet would be reasonable, with
    lower depths necessary in sections without rapids. The record suggests the
    undepleted river had median depths of at least 1.5 feet in the four segments
    but contains conflicting evidence about whether depths exceeded 2 feet.
    ¶83             ANSAC faced an enormous record and had the responsibility
    of weighing various components with competing, and sometimes
    contradictory, evidence. ANSAC had the duty to weigh the evidence. See
    Winkleman, 224 Ariz. at 242, ¶ 29. ANSAC did not specifically indicate how
    it weighed this conflicting evidence. Even so, “[i]n reviewing factual
    determinations, we will not substitute our conclusion for that of the
    administrative agency; instead, we review the record to determine whether
    substantial evidence supports the agency’s decision and whether the
    agency exercised its discretion reasonably and with due consideration.” See
    id. at 238, ¶ 14. We, thus, affirm ANSAC’s conclusion regarding segments 3
    through 6 of the Salt.
    23
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    C.     The Gila
    ¶84         Again, citing historical evidence, DOW argues ANSAC erred
    when it found all the Gila nonnavigable. As to segments 1 through 7, we
    disagree.
    ¶85            ANSAC concluded the Gila was nonnavigable based on the
    following factual findings: (1) unpredictable flooding caused persistent
    channel changes and seasonal high-flow periods; (2) a lack of historical or
    modern use as a highway for commerce; (3) natural Class II and III rapids
    in segment 4 and natural Class I rapids in segments 1, 2, and 5; (4) “highly
    braided channel[s]” in segments 1, 3, and 6 at the time of statehood because
    of flooding around the turn of the century; (5) sandbars, rock outcroppings,
    beaver dams, marshes, strainers, and other obstacles in “various parts of
    the river”; (6) improved navigability of modern boats; and (7) almost all
    observers before and at the time of statehood considered the Gila
    nonnavigable.
    ¶86           Those findings—when viewed in the light most favorable to
    affirming ANSAC—are sufficient to support ANSAC’s nonnavigability
    determination. Despite other compelling evidence, ANSAC did not err in
    finding the lack of regular historical use was compelling evidence of the
    Gila’s nonnavigability. See supra § IV-E-1. ANSAC discussed the evidence
    of historical boating on the Gila at length. Though the record may also
    support DOW’s assertion boating was common enough to compel a
    navigability determination, the record is sufficient to uphold ANSAC’s
    determination to the contrary.
    ¶87           ANSAC’s findings regarding rapids, channel changes,
    sandbars, rock outcroppings, beaver dams, marshes, strainers, and other
    obstacles do not necessarily compel a nonnavigability determination. See
    Utah I, 
    283 U.S. at
    82–87. Again, viewing the record in the light most
    favorable to upholding ANSAC’s nonnavigability determination, the
    record sufficiently supports ANSAC’s findings.
    ¶88           Historical observations about a river’s nonnavigability are of
    limited probative value. See Oklahoma, 
    258 U.S. at 585
    . But here, the
    historical observations were the best evidence of the Gila’s ordinary and
    natural condition, see Winkleman, 224 Ariz. at 242, ¶ 30, and ANSAC did not
    indicate whether it found the historical observations or expert estimates
    more credible.
    ¶89         DOW argues the evidence compels a navigability
    determination. We agree the record could reasonably support such a
    24
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    finding. Even so, we affirm the nonnavigability determination except for
    segment 8 because substantial evidence supports ANSAC’s decision and
    reasonably supports the opposite conclusion. See Winkleman, 224 Ariz. at
    238, ¶ 14.
    D.     Segment 8 of the Gila
    ¶90           ANSAC found “the evidence regarding navigability and
    nonnavigability [was] evenly weighted” and, thus, concluded that segment
    8 was nonnavigable. Because of errors described below, the scales tip in
    favor of navigability based on ANSAC’s own assessment of the evidence.
    ¶91            ANSAC cited historical accounts of depths of 9 to 15 feet in
    segment 8 between the 1850s and the 1890s, from the period during and
    immediately after the river was in its ordinary and natural condition.
    ANSAC also noted accounts reported the river was dry during “some
    seasons” in segment 8, but seasonal lows do not preclude a finding of
    navigability. See supra § IV-E-3. Small, low-draft boats would have had no
    trouble navigating at the reported depths, and the record suggests larger
    craft such as barges, mountain boats, and even steamboats would have been
    capable as well. Those craft would have been commercially useful for
    transporting people, military supplies, mining materials, and agricultural
    goods as well as for hunting and trapping, which ANSAC found were types
    of commerce “contemplated prior to and at statehood” on the Gila. See
    § IV-C. As such, based on the ordinary and natural river conditions, the
    commercial demands, and the customary watercraft, segment 8 would have
    been susceptible to at least seasonal commercial use.
    ¶92            Likewise, the historical boating evidence on segment 8
    compels a navigability finding. ANSAC cited many reports of successful
    downstream boat trips on segment 8 before the turn of the century. ANSAC
    noted: (1) the Howard family boating from Gila Bend to Yuma in 1849;
    (2) a “few accounts” of Forty-Niners traveling to Yuma in small boats;
    (3) the Hamilton party taking a homemade skiff from Phoenix to Yuma in
    1879; (4) William Eaton “clear[ing] $1,500”on the lower Gila in 1884; (5) the
    Day brothers trapping along the lower Gila in 1891 to 1892; (6) G.W. Evans
    and Amos Adams traveling from Phoenix to Yuma in a homemade wooden
    flat boat in 1895; (7) and Lieutenants Gully and Richardson floating another
    homemade wooden boat from the Pima Villages to Yuma in 1896. The
    record also contains evidence of steamboats traveling a handful of miles
    upstream from the Colorado River confluence in the 1860s.
    25
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    ¶93           Though a few of those trips happened while the Gila was in
    its ordinary and natural condition, most were after significant diversions
    had occurred. Those diversions generally would have made navigability
    more difficult. The boats used in the trips listed in the paragraph above
    would have been meaningfully similar to boats at the time of statehood.
    And steamboats aside, at the very least, the historical evidence of small
    boats navigating segment 8 shows that segment was susceptible to
    commercial use for hunting and trapping in small boats at statehood.
    ¶94            In sum, the evidence of the Gila’s pre-diversion condition and
    navigation was not, as ANSAC said, “evenly weighted.” Instead, DOW met
    its burden, by a preponderance of the evidence, of showing segment 8 was
    at the time of statehood susceptible to use for trade and travel as a highway
    for commerce. We need not consider ANSAC’s failure to address the effects
    of human impacts because the human impacts would have reduced, not
    increased, the flow rate at the time of statehood. See Winkleman, 224 Ariz. at
    241–42, ¶ 28. And as noted above, even without considering those effects,
    segment 8’s flow rate was sufficient to establish navigability. As a result,
    we reverse ANSAC’s nonnavigability finding on segment 8 of the Gila and
    hold segment 8 of the Gila was navigable at statehood.
    VI.    Title to Riverbeds
    A.     Pre-Statehood Dams
    ¶95           SRP argues this court may not reverse a finding of
    navigability if it determines any segments of the Salt or lower segments of
    the Gila would be navigable but for the federal government’s construction
    of pre-statehood dams—primarily the Roosevelt Dam and Granite Reef
    Dam—or diversions under the Reclamation Act. Specifically, SRP argues
    because the 1910 Arizona-New Mexico Enabling Act reserved the federal
    government’s interest in the riverbeds subject to pre-statehood projects
    pursued under the Reclamation Act, this court should find any such
    projects have no bearing on the rivers’ ordinary and natural condition. We
    disagree.
    ¶96             “States enjoy a presumption of title to submerged lands
    beneath inland navigable waters within their boundaries.” Alaska v. United
    States, 
    545 U.S. 75
    , 78 (2005). But “[t]he Federal Government can overcome
    the presumption and defeat a future State’s title to submerged lands by
    setting them aside before statehood in a way that shows an intent to retain
    title.” 
    Id.
     at 79 (citing United States v. Alaska, 
    521 U.S. 1
    , 33–34 (1997)). The
    federal government’s “intent . . . must be definitely declared or otherwise
    26
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    made very plain.” See 
    id.
     (citing Alaska, 
    521 U.S. at 34
    ) (quoting Holt State
    Bank, 
    270 U.S. at 55
    ).
    ¶97           SRP relies on two United States Supreme Court cases. See id;
    Idaho v. United States, 
    533 U.S. 262
     (2001). But these cases both deal with
    riverbeds underlying pre-statehood federal reservations. Alaska, 
    545 U.S. at
    102–03; Idaho, 
    533 U.S. at
    265–71. To the extent SRP argues the federal
    government reserved title to the submerged lands, we do not resolve that
    issue because the issue before ANSAC was navigability, not riverbed
    ownership.
    ¶98            As part of this argument, SRP urges this court to adopt a rule
    excepting the effects of federal infrastructure made under a federal
    reservation on a river’s ordinary and natural condition. But the federal test
    for navigability is whether the rivers would have been navigable in their
    “natural and ordinary condition” at statehood. PPL Montana, 
    565 U.S. at 592
    (quoting Oklahoma, 
    258 U.S. at 591
    ). And this court has already considered
    and rejected an approach allowing ANSAC to ignore the effects of pre-
    statehood dams and diversions. See Winkleman, 224 Ariz. at 240–41, ¶¶ 23–
    28. As a last point, SRP cites no authority to support this proposition, and
    we find none.
    B.     Riverbed Title on Indian Reservations
    ¶99           We need not resolve the effect of our ruling on portions of
    riverbeds lying within the Yavapai-Apache Reservation, Fort McDowell
    Yavapai Nation, Gila River Indian Reservation, San Carlos Apache Indian
    Reservation, and Salt River Indian Reservation. See Ariz. Const. art. 20, § 4.
    Segment 8 of the Gila is the only segment we conclude was in fact navigable
    at statehood, and no portion of segment 8 lies within a federally recognized
    Indian reservation.
    ¶100         This court’s ruling on navigability or nonnavigability, thus,
    has no consequence on any tribe’s title to lands in Indian country.
    ATTORNEY FEES
    ¶101           DOW requests attorney fees under A.R.S. § 12-348 and “the
    private attorney general doctrine” as laid out in Arnold v. Ariz. Dep’t of
    Health Servs., 
    160 Ariz. 593
     (1989). Because DOW failed to prevail on most
    issues, we decline its request for costs and attorney fees under A.R.S. § 12-
    348. See Aqua Mgmt., Inc. v. Abdeen, 
    224 Ariz. 91
    , 96–97, ¶ 23 (App. 2010)
    (awarding attorney fees to party who prevailed on majority of issues). And
    given DOW’s failure to prevail on most issues, we exercise our discretion
    27
    DOW, et al. v. AZ NSAC, et al.
    Opinion of the Court
    to decline its request for attorney fees under the private attorney general
    doctrine. See Arnold, 
    160 Ariz. at 609
    . We decline to award costs under
    A.R.S. § 12-341 because DOW prevailed only in small part.
    CONCLUSION
    ¶102         We affirm ANSAC’s determination for all segments of the
    Verde and the Salt and for segment 1 through 7 of the Gila. We reverse
    ANSAC’s determination for segment 8 of the Gila and hold segment 8 of
    the Gila was navigable at statehood.
    AMY M. WOOD • Clerk of the Court
    FILED: AA
    28