Treaty between the United States and the Flathead, Kootenay, and Upper Pend d'Oreilles Indians : July 16, 1855, ratified April 18, 1859.

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"Concluded at the treaty ground, at Hell Gate, in the Bitter Root valley."
Ratified by the Senate March 8, 1859; signed by President James Buchanan April 18, 1859.