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Upper Skagit Tribe v. Lundgren

Updated Sep 19, 2026

In brief

Tribal sovereign immunity applies in lawsuits seeking to determine rights to property.

Where it stands
Decided

Decided 7-2 · May 21, 2018 · Opinion by Chief Justice Roberts

What it’s about
The Upper Skagit Indian Tribe and Sharline and Ray Lundgren disputed ownership of a strip of land between their adjacent Washington properties.
Who it affects
The decision affects tribes and neighboring property owners facing boundary disputes. For example, a landowner seeking to clear title to disputed land may face tribal sovereign immunity in state court.

Summary: written with AI from the case record.

Illustration for Upper Skagit Tribe v. Lundgren
Conceptual illustration · AI-generated

What it's about

The Supreme Court wiped out the Washington Supreme Court’s judgment and sent the case back (vacated and remanded), saying an earlier tax case did not decide whether tribal sovereign immunity applies in lawsuits over property.

The case involved tribal sovereign immunity and interpretation of the Indian General Allotment Act of 1887.

Question presented

Does a court's exercise of in rem jurisdiction overcome the jurisdictional bar of tribal sovereign immunity when the tribe has not waived immunity and Congress has not unequivocally abrogated it?

What the Court decided

Holding

Yakima addressed not the scope of tribal sovereign immunity, but a question of statutory interpretation of the Indian General Allotment Act of 1887. That Act authorized the President to allot parcels of reservation land to individual tribal members and directed the United States eventually to issue fee patents to the allottees as private individuals. In 1934, Congress reversed course but made no attempt to withdraw the lands already conveyed. As a result, Indian reservations sometimes contain both trust land held by the United States and fee-patented land held by private parties. Yakima concerned the tax consequences of this intermixture. 187 Wash. 2d 857, 389 P. 3d 569, vacated and remanded.

Result
Vacated

The vote

  • Joined the judgment
  • Dissented
  • Wrote an opinion
Majority · 7joined the Court's opinion
  1. Breyer
  2. Kagan
  3. Kennedy
  4. Ginsburg
  5. Sotomayor
  6. Robertswrote the opinion
  7. Gorsuchalso wrote separately
Dissenting · 2disagreed with the result
  1. Thomaswrote the dissent
  2. Alito
7 justices joined the judgment, 2 dissented.

What's next

The Court has finished this docket action. The parties must follow the decision in any further proceedings over the disputed land.

Documents

2

Docket activity

10
  • New analysis added

    Sep 19, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Sep 19, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Sep 19, 2026 · Generated

  • AI analysis generated: Decision Record

    Sep 19, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Sep 19, 2026 · Court records

Show 5 more
  • New analysis added

    Sep 3, 2026 · Court records

  • AI analysis generated: Case Briefing

    Sep 3, 2026 · Generated

  • New analysis added

    Jul 2, 2026 · Court records

  • Opinion added: opinion

    May 21, 2018 · Court records

  • Brief added: Questions Presented

    Court records

More questions

3
What did the Supreme Court rule in Upper Skagit Tribe v. Lundgren?
The Court decided that Indian tribes have sovereign immunity in in rem lawsuits involving rights to property.
Who is affected by the Upper Skagit Tribe decision?
Tribes and neighboring landowners may be affected when they dispute a boundary or ownership of land. State-court property claims can raise tribal immunity questions.
What happens next in Upper Skagit Tribe v. Lundgren?
The Supreme Court has finished its action in the case. Any further land dispute proceedings must follow the Court's decision.

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Sep 3, 2026Methodology

Court records and filings

Reporting and analysis