October 6, 2026.
The United States Supreme Court has declined to hear the Winnemucca Indian Colony’s appeal seeking to revive more than $208 million in claims against the federal government, leaving in place a Federal Circuit decision that dismissed the Colony’s lawsuit.
The Supreme Court denied the Colony’s petition for a writ of certiorari on October 5, 2026. The Court did not issue an opinion explaining the denial. The decision leaves the Federal Circuit’s October 2025 ruling in effect.
The case, Winnemucca Indian Colony v. United States, involved allegations that the federal government failed to fulfill various trust responsibilities involving the Colony’s land and natural resources, including water.
The Colony had sought more than $208 million in monetary damages, along with other forms of relief. The amount was the damages sought by the Colony; it was not an award that a court had previously determined the federal government owed.
Dispute involved land, water and federal trust responsibilities.
The Winnemucca Indian Colony is a federally recognized Indian Tribe in northern Nevada. The federal government reserved approximately 320 acres for two bands of Shoshone people through an executive order issued in 1917. An additional 20 acres were later set aside for the Colony.
The Colony's lawsuit grew out of a longstanding dispute involving the federal government's recognition of tribal leadership and allegations that nonmembers occupied or used Colony lands and resources.
According to the Court of Federal Claims, the Colony alleged that the Bureau of Indian Affairs failed to carry out various trust responsibilities. The allegations included claims involving land encroachments, roads, an electrical substation, power lines, trespass, economic losses and water resources.
One of the Colony's claims concerned water. The Colony alleged that structures and wells associated with an upstream development diverted water from a stream or removed water from wells from which water could reach the Colony's lands.
The Colony argued that the federal government had a responsibility to protect the Colony's reserved water rights from third-party interference.
Federal courts rejected the breach-of-trust claims.
The United States Court of Federal Claims dismissed the Colony's amended complaint in August 2023.
The court found several jurisdictional problems with the Colony's claims. Among other things, the court determined that some claims did not identify a law that required the federal government to pay money, some were barred by the statute of limitations, and others were affected by a separate pending lawsuit under federal jurisdictional rules.
The Court of Federal Claims also determined that some of the requested declaratory and equitable relief was outside that court's jurisdiction.
The Colony appealed to the United States Court of Appeals for the Federal Circuit.
On October 16, 2025, the Federal Circuit affirmed the dismissal. The appeals court examined the Colony's claims individually and agreed with the lower court that the claims could not proceed in the Court of Federal Claims.
Water rights were a central issue.
The water claim raised an important question involving federally reserved water rights.
The Colony relied in part on the Winters doctrine, a legal principle originating with the Supreme Court's 1908 decision in Winters v. United States. The doctrine generally recognizes that when the federal government reserves land for an Indian Tribe, it also implicitly reserves sufficient water necessary to accomplish the purposes of the reservation.
The Federal Circuit did not rule that the Winnemucca Indian Colony had no federally reserved water rights.
Instead, the court addressed a different question: whether the Winters doctrine, together with the legal authorities cited by the Colony, established a specific federal trust obligation that would support monetary damages claim in the Court of Federal Claims.
The Federal Circuit concluded that it did not.
The appeals court relied heavily on the Supreme Court's 2023 decision in Arizona v. Navajo Nation. In that case, the Supreme Court held that the existence of federally reserved water rights does not by itself require the federal government to take affirmative steps to secure water for a Tribe. The Court said such a duty must be found in the text of a treaty, statute or regulation rather than inferred from general common-law trust principles.
Applying that reasoning, the Federal Circuit concluded that the 1917 executive order establishing the Winnemucca reservation did not impose a specific duty requiring the federal government to prevent third-party diversion of water or otherwise take affirmative steps to secure water for the Colony.
The court also rejected the Colony's reliance on a federal regulation concerning tribal land conveyances, finding that the regulation did not establish a governmental duty concerning the alleged diversion of the Colony's water.
Colony argued the ruling threatens the practical value of its reservation.
In asking the Supreme Court to intervene, the Winnemucca Indian Colony argued that the Federal Circuit's interpretation left its federally reserved water rights without an effective federal remedy when outside parties interfere with those resources.
The Colony described the consequences in forceful terms in its Supreme Court petition, arguing that the decision could leave its reservation as "useless sand without water."
That statement was the Colony's characterization of the consequences of the lower-court ruling, not a finding by either the Federal Circuit or the Supreme Court.
The Colony also argued that its case presented an important question concerning the federal government's trust responsibilities toward federally recognized Tribes and whether those responsibilities can be enforced when third parties allegedly interfere with tribal resources.
Supreme Court leaves Federal Circuit decision in place.
The Supreme Court's decision was a denial of the Colony's petition for review. A denial of certiorari does not constitute a ruling by the Supreme Court on the merits of the Colony's underlying allegations.
Instead, the denial means the Supreme Court will not review the Federal Circuit's decision in this case, leaving that decision in place.
The Federal Circuit's ruling therefore remains the controlling decision in the litigation, and the Colony's claims for monetary relief in the Court of Federal Claims remain dismissed.
The case also leaves unresolved broader policy and legal questions concerning the protection of tribal water resources. The Federal Circuit's decision specifically addressed whether the legal authorities identified by the Winnemucca Indian Colony imposed the type of money-mandating federal duty required for a damages action. It did not eliminate the Winters doctrine or establish that the Colony has no federally reserved water rights.
The Supreme Court's refusal to hear the case means those issues will not receive further review from the nation's highest court through this particular lawsuit.
