Arizona, et al., Petitioners v. Navajo Nation, et al.

  1. December 19, 2022

    High Court Alone Has Water Rights Jurisdiction, States Say

    Arizona, Colorado and Nevada on Monday urged the U.S. Supreme Court to reverse a Ninth Circuit ruling that found the Navajo Nation could sue the federal government for a full accounting of the tribe's water needs.

  2. November 04, 2022

    Justices To Hear Navajo Case Over Colo. River Water Rights

    The U.S. Supreme Court announced Friday that it will take up litigation involving the Navajo Nation's water rights, which federal and state authorities have warned could have serious implications for resources in the Colorado River watershed amid historic drought conditions.

  3. September 26, 2022

    Navajo Nation Urges High Court To Pass On Water Suit

    Navajo leaders want the U.S. Supreme Court to uphold their tribe's right to a share of water from the federally managed Colorado River, arguing that a pair of 19th-century treaties confer on the government a duty to supply their hyper-arid reservation with water for agricultural purposes.

  4. July 20, 2022

    DOI Seeks High Court Review Of Navajo Water Suit

    Federal authorities want the U.S. Supreme Court to overturn a Ninth Circuit ruling last year that found the government may be obligated to determine the Navajo Nation's water needs, which they say has no basis in statutory language and "cannot be squared" with basic precedent.