Document: 88th Congress, 1st Session, Senate, Document No. 20, Determination of the Rights of the States of the Lower Colorado River Basin to Waters of the Main Stream of the Colorado River, Opinion of the United States Supreme Court in the Case of State of Arizona, Plaintiff, v. State of California et al, Rendered June 3, 1963, Presented by Mr. Hayden, June 4, 1963, page 5048 ARIZONA v. CALIFORNIA. problem before us and cannot be accepted as limiting the broad powers of the United States to regulate navigable waters under the Commerce Clause and to regulate government lands under Art. IV, § 3, of the Constitution. We have no doubt about the power of the United States under these clauses to reserve water rights for its reservatio...