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The Northern Cheyenne Reservation is located in southeastern Montana near Colstrip, Montana. This mineral rich reservation is home to over 9,300 Northern Cheyenne enrolled tribal members and contains about 444,000 acres of land within its exterior boundary, the Tribe owns additional lands south of the reservation and near the Tongue River Reservoir. There are about 442,276 acres of tribal and allotted surface trust acreage that includes Turtle Mountain Public Domain lands.

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