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Fort Peck Indian Reservation


  • Missouri River
  • Indian Nation
About 6,800 Assiniboine and Sioux live on the Fort Peck Reservation, with another approximately 3,900 tribal members living off the reservation. The Fort Peck Reservation is in northeastern Montana, 40 miles west of the North Dakota border and 50 miles south of the Canadian border, with the Missouri River defining its southern perimeter. It includes more than two million acres of land.

A prosperous industrial park in Poplar is one of the largest employers in Montana. A variety of enterprises, including metal fabrication and production sewing, are housed here. Other industries, including an electronics manufacturer, flourish on the reservation. Farming, ranching and oil extraction also play a part in the reservation economy.
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