Tribal Treaties Database
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Tribes
Original Signatories
Mandan
Mandan
Treaties
Year
Treaty
1825
Treaty with the Mandan Tribe, 1825
1866
Agreement at Fort Berthold, 1866
1886
Agreement with the Arikara, Hidatsa, and Mandan, 1886
1902
Agreement with the Arikara, Hidatsa, and Mandan, 1902