Plain-English summary
Court: 1868 treaty reserved water for Navajo Nation but didn’t force U.S. to secure it
The Court held that the 1868 treaty creating the Navajo Reservation reserved water needed for the Tribe’s purposes, but did not impose a federal duty to take affirmative steps to secure that water. The Ninth Circuit judgment allowing the Nation to force the Secretary to develop a water plan was reversed.
Why this matters
The ruling limits tribal efforts to use courts to force federal agencies to take specific actions to secure resources promised by treaties. It clarifies the difference between a reserved right (the Tribe has a right to water) and a governmental duty to take affirmative measures (the United States must act), affecting how tribes can enforce treaty-based resource claims against the federal government.
Who may feel it
- Tribal nations with treaty-based resource claims
- Federal agencies (especially the Department of the Interior and Bureau of Reclamation)
- States managing interstate water resources (especially in the Colorado River Basin)
- Water users and utilities in affected river basins
- Lower courts handling Indian treaty and water-rights disputes
Key questions
- Does the 1868 treaty between the United States and the Navajo Nation create an affirmative federal duty to take steps to secure water for the Tribe?