Utah Power Light Company v. United States…
“ Not only does the Constitution (art. 4, § 3, cl. 2) commit to Congress the power 'to dispose of and make all needful rules and regulations respecting' the lands of the United States, but the settled course of legislation, congressional and state, and repeated decisions of this court, have gone upon the theory that the power of Congress is exclusive, and that only through its exercise in some form can rights in lands belonging to the United States be acquired. ”
