Tribal Treaties Explained: History, Rights & Modern Impact
Updated July 2025
Treaties between the United States and Indigenous nations form the oldest body of federal Indian law. Although Congress stopped signing new treaties in 1871, more than 370 ratified agreements remain “the supreme Law of the Land” under the Constitution’s Supremacy Clause, governing everything from hunting and fishing to land title and criminal jurisdiction. This guide unpacks how treaties were made, why they still matter, and what recent Supreme Court decisions mean for the next generation of tribal sovereignty.
1. What Exactly Is a Tribal Treaty?
A treaty is a diplomatic contract between sovereigns. From 1778 to 1871 the U.S. negotiated treaties with Native nations covering peace, land cessions, commerce and recognition of reserved rights. Once the Senate ratified a treaty, it became federal law—binding on states, private citizens and the federal government alike.
Key Point: Because tribes entered these agreements as nations, their rights persist unless Congress clearly abrogates them—and even then courts interpret ambiguity in favor of tribes.
2. Timeline of Treaty-Making (1778 – 1871)
| Era | Milestone Treaties | Lasting Effects |
|---|---|---|
| 1778–1800 | Treaty of Fort Pitt (Lenape, 1778) – first U.S.–Indian treaty | Sets precedent for military alliances & recognition of tribal sovereignty |
| 1800–1830 | Treaty of Greenville (1795); Louisiana Purchase treaties; Treaty of Doak’s Stand (Choctaw, 1820) | Opens Midwest & South to U.S. settlement; establishes “civilization” payments |
| 1830–1850 | Removal-era treaties: Treaty of New Echota (Cherokee, 1835); Treaty of Traverse des Sioux (Dakota, 1851) | Leads to forced relocations (e.g., Trail of Tears) |
| 1850–1868 | Fort Laramie (Lakota, 1851 & 1868); Medicine Lodge (Kiowa, Comanche, 1867) | Creates modern reservation system; guarantees hunting/fishing rights |
| 1871 | Indian Appropriations Act ends treaty making but promises to honor existing ones. | No new treaties; Congress shifts to statutes & executive orders |
3. Why Congress Stopped Signing Treaties
Section 3 of the Indian Appropriations Act of 1871 declared that “hereafter, no Indian nation or tribe…shall be acknowledged or recognized as an independent nation … with whom the United States may contract by treaty.” Lawmakers wanted tighter control over Indian affairs and resented Senate delays in ratification. Nevertheless, the clause explicitly preserved all prior treaties, and courts continue to enforce them today.
4. Interpreting Treaties: The Canons of Construction
U.S. courts apply three guiding principles:
- Ambiguities resolved in favor of tribes.
- Treaties must be interpreted as tribes would have understood them in 19th-century context.
- Rights not expressly ceded are reserved. (The “reserved-rights doctrine.”)
These canons arose in early cases like Worcester v. Georgia (1832) and remain decisive in modern rulings such as McGirt v. Oklahoma (2020).
5. Landmark Supreme Court Cases on Treaty Rights
| Year | Case | Holding |
|---|---|---|
| 1832 | Worcester v. Georgia | States lack jurisdiction in Indian Country absent federal consent. |
| 1905 | United States v. Winans | Upholds Yakama fishing rights; recognizes “reserved rights” doctrine. |
| 1968 | Menominee Tribe v. United States | Treaty hunting & fishing rights survive termination acts. |
| 1974 | United States v. Washington (Boldt decision) – aff’d 1979 | Tribes entitled to up to 50 % of harvestable fish in usual and accustomed grounds. |
| 2019 | Herrera v. Wyoming | Crow off-reservation hunting rights survived Wyoming statehood. |
| 2020 | McGirt v. Oklahoma | Eastern Oklahoma remains reservation; treaties never disestablished. |
| 2023 | Haaland v. Brackeen | Reaffirms Congress’s plenary power rooted partly in treaty obligations. |
Takeaway: Courts continue to look to 19th-century treaty text to decide 21st-century jurisdiction, hunting, fishing and child-welfare disputes.
6. Modern Impacts of Historic Treaties
Hunting & Fishing
Tribes retain treaty-protected access to “usual and accustomed” grounds, often superseding state seasons and fees.
Land & Natural Resources
Treaties serve as enforceable titles. The 2020 McGirt ruling restored criminal jurisdiction over 3 million acres, demonstrating that Congress—not courts—must disestablish reservations.
Criminal & Civil Jurisdiction
Reservation boundaries defined by treaties determine whether states, tribes or the federal government prosecute crimes and tax activities.
Federal Trust Responsibility
Treaties created a fiduciary duty: in exchange for land cessions, the U.S. promised health care, education and infrastructure. Budget shortfalls and mismanagement remain core issues in modern litigation.
7. Common Misconceptions
- Myth: Treaties expired with statehood.
Reality: Only Congress can explicitly abrogate treaty rights. Several Supreme Court cases reject implied termination (Herrera, McGirt). - Myth: Treaties apply only on reservations.
Reality: Some rights—like off-reservation fishing—follow tribal members wherever the treaty specifies. - Myth: States can override treaties under the Tenth Amendment.
Reality: The Supremacy Clause places treaties above conflicting state laws.
Frequently Asked Questions
Why didn’t Congress simply revoke all treaties in 1871?
Because the Constitution forbids bills of attainder and ex post facto laws. Nullifying ratified treaties would violate international-law norms and the Supremacy Clause.
Can new treaties still be made today?
No. Since 1871, Congress negotiates through statutes, compacts or settlements. Yet existing treaties remain enforceable federal law.
How do courts decide if a treaty has been abrogated?
They look for a “clear and plain” statement from Congress. Silence or ambiguity is read in favor of tribes.
Do treaty rights apply to non-enrolled descendants?
Generally no. Most rights are limited to members of the treaty-signing tribe or their recognized successors.
What happens when state law conflicts with a treaty?
The treaty prevails. States may regulate only for essential conservation or public-safety reasons, and even then must meet strict scrutiny.
Where can I read the full text of my tribe’s treaties?
Digitized treaties are available at the National Archives, Oklahoma State University’s “Kappler Project,” and on tribal government websites.
