Montana v. United States, 450 U.S. 544 (1981), was a Supreme Court case that addressed two issues: (1) Whether the title of the Big Horn Riverbed rested with the United States, in trust for the Crow Nation or passed to the State of Montana upon becoming a state and (2) Whether Crow Nation retained the power to regulate hunting and fishing on tribal lands owned in fee-simple by a non-tribal member. First, the Court held that Montana held title to the Big Horn Riverbed because the Equal Footing Doctrine required the United States to pass title to the newly incorporated State. Second, the Court held that Crow Nation lacked the power to regulate nonmember hunting and fishing on fee-simple land owned by nonmembers, but within the bounds of its reservation. More broadly, the Court held that Trib