The Northern Cheyenne Indian Reservation, formerly named the Tongue River Indian Reservation, is home of the federally recognized Northern Cheyenne Tribe of the Northern Cheyenne Indian Reservation. Located in southeastern Montana, the reservation is approximately 444,000 acres in size and centered by the town of Lame Deer, the tribal and government agency headquarters and home of the annual Northern Cheyenne Powwow. It is bounded on the east by the Tongue River and on the west by the Crow Reservation. There are small parcels of non-contiguous off-reservation trust lands in Meade County, South Dakota, northeast of the city of Sturgis.