Arizona v. Navajo Nation
Issues
Is there a trust relationship between the Navajo Nation and the U.S. government and no jurisdictional prohibitions such that the Navajo Nation can compel the U.S. Government to assess and manage the Nation’s water interests in the Colorado River?
Note: The authors mirror the parties’ and courts’ use of the term “Indian” as a legal term in this Preview.
This case asks the Supreme Court to consider whether there is a trust relationship between the Navajo Nation (“the Nation) and the U.S. government regarding the Nation’s water rights. Arizona contends that the Nation’s claim infringes upon the Supreme Court’s retained and exclusive jurisdiction over the allocation of water from the Colorado River mainstream in Arizona v. California. Furthermore, Arizona argues that the Nation has failed to state a cognizable breach-of-trust claim because the Nation did not specify a source of law establishing the government’s fiduciary duty. The Nation counters that the claim does not fall under the Supreme Court’s reserved jurisdiction because the Nation did not seek a quantification of its rights to the Colorado River mainstream. The Nation further contends that it has identified provisions in treaties, statutes, and the Winters doctrine to establish the trust duty on the federal government to ensure an adequate water supply for the Navajo Reservation. The outcome of this case will have far-reaching implications for the Navajo Nation’s water resources, the stability of water rights, and the water allocation system.
Questions as Framed for the Court by the Parties
(1) Whether the opinion of the U.S. Court of Appeals for the 9th Circuit, allowing the Navajo Nation to proceed with a claim to enjoin the secretary of the U.S. Department of the Interior to develop a plan to meet the Navajo Nation’s water needs and manage the mainstream of the Colorado River in the Lower Basin so as not to interfere with that plan, infringes upon the Supreme Court’s retained and exclusive jurisdiction over the allocation of water from the LBCR mainstream in Arizona v. California; and (2) whether the Navajo Nation can state a cognizable claim for breach of trust consistent with the Supreme Court’s holding in United States v. Jicarilla Apache Nation based solely on unquantified implied rights to water under the doctrine of Winters v. United States?
The Navajo Nation (“the Nation”) is a federally recognized Indian tribe that signed the 1849 Treaty and the 1868 Treaty with the United States. Navajo Nation v.
Additional Resources
- Barbara Grzincic, Supreme Court will hear Navajo Nation’s water-rights case, Reuters (Nov. 7, 2022).
- Maya Earls & Kimberly Strawbridge Robinson, Supreme Court Will Review Navajo Nation Colorado River Spat, Bloomberg (Nov. 4, 2022).