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Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation, Montana

Federally RecognizedMT
Tribal government contact
Floyd Azure, Chairman
501 Medicine Bear Road
Poplar, Montana, 59255
(406) 768-2300
BIA region
Rocky Mountain · Fort Peck Agency
Enrollment criteria
Each Nation sets its own enrollment law. We're still gathering this Nation's criteria — enrollment is determined solely by the Tribe.
Recognition
91 FR 4102 (Jan 30, 2026)
This profile is being built. If you represent this Nation and want to add or correct enrollment information, contact us.

NNBN confirms federal recognition and displays information as published by the Nation and the U.S. government. NNBN does not adjudicate or re-issue tribal enrollment — the Nation is always the sole authority on its membership.