United States v. Gila Valley Irrigation District

Attempts to alter water use agreements, especially those spanning back decades or even centuries, elicit intense scrutiny from water rights holders. In United States v. Gila Valley Irrigation Dist., the Ninth Circuit upheld application of a 1935 Decree apportioning water among various regional entities, including two Indian tribes, to bar a mineral company from transferring water rights between properties within the Gila River drainage.