Update — footnote 2 of the majority:
As noted earlier, the Ninth Circuit has held in three cases—the so called Katie John trilogy—that the term “public lands,” when used in ANILCA’s subsistence-fishing provisions, encompasses navigable waters like the Nation River. See Alaska v. Babbitt, 72 F. 3d 698 (1995); John v. United States, 247 F. 3d 1032 (2001) (en banc); John v. United States, 720 F. 3d 1214 (2013); supra, at 12. Those provisions are not at issue in this case, and we therefore do not disturb the Ninth Circuit’s holdings that the Park Service may regulate subsistence fishing on navigable waters. See generally Brief for State of Alaska as Amicus Curiae 29–35 (arguing that this case does not implicate those decisions); Brief for Ahtna, Inc., as Amicus Curiae 30–36 (same).