Opinion of the Court
Lacs, 526 U. S., at 207.
Just as in Mille Lacs, there is no suggestion in the text of the 1868 Treaty with the Crow Tribe that the parties intended the hunting right to expire at statehood. The treaty identifies four situations that would terminate the right: (1) the lands are no longer “unoccupied”; (2) the lands no longer belong to the United States; (3) game can no longer “be found thereon”; and (4) the Tribe and non-Indians are no longer at “peace . . . on the borders of the hunting districts.” Art. IV, 15 Stat. 650. Wyoming’s statehood does not appear in this list. Nor is there any hint in the treaty that any of these conditions would necessarily be satisfied at statehood. See Mille Lacs, 526 U. S., at 207.
The historical record likewise does not support the State’s position. See Choctaw Nation v. United States, 318 U. S. 423, 431–432 (1943) (explaining that courts “may look beyond the written words to the history of the treaty, the negotiations, and the practical construction adopted by the parties” to determine a treaty’s meaning). Crow Tribe leaders emphasized the importance of the hunting right in the 1867 negotiations, see, e.g., Proceedings 88, and Commissioner Taylor assured them that the Tribe would have “the right to hunt upon [the ceded land] as long as the game lasts,” id., at 86. Yet despite the apparent importance of the hunting right to the negotiations, Wyoming points to no evidence that federal negotiators ever proposed that the right would end at statehood. This silence is especially telling because five States encompassing lands west of the Mississippi River—Nebraska, Nevada, Kansas, Oregon, and Minnesota—had been admitted to the Union in just the preceding decade. See ch. 36, 14 Stat. 391 (Nebraska, Feb. 9, 1867); Presidential Proclamation No. 22, 13 Stat. 749 (Nevada, Oct. 31, 1864); ch. 20, 12 Stat. 126 (Kansas, Jan. 29, 1861); ch. 33, 11 Stat. 383 (Oregon, Feb. 14, 1859); ch. 31, 11 Stat. 285 (Minnesota,
