What We Do

The following tribes are serviced under the Rocky Mountain Regional Office:

• Blackfeet Tribe – Headquartered in Browning, Montana with 16,142 enrolled members
• Crow Tribe – Headquartered in Crow Agency, Montana with 12,027 enrolled members
• Gros Ventre & Assiniboine Tribes (Fort Belknap Community Council) – Headquartered in Harlem, Montana with 6,503 enrolled members
• Assiniboine & Sioux Tribes - Headquartered in Poplar, Montana with 12,096 enrolled members
• Northern Cheyenne Tribe - Headquartered in Lame Deer, Montana with 9,300 enrolled members
• Eastern Shoshone Tribe – Headquartered in Fort Washakie, Wyoming with 3,909 enrolled members
• Northern Arapahoe Tribe - Headquartered in Fort Washakie, Wyoming with 8,698 enrolled members
• Chippewa Cree Tribe - Headquartered in Box Elder, Montana with 6,002 enrolled members