The Fort Peck Reservation is located in northeastern Montana and is home to the Assiniboine and Sioux tribes. Established in 1888, it covers approximately 2 million acres and is one of the largest reservations in the United States. The area features diverse landscapes, including plains, rivers, and lakes, which support various wildlife and plant species. The reservation's economy is primarily based on agriculture, tourism, and natural resources. The Fort Peck Tribal Government manages local services and programs, focusing on education, health care, and economic development to improve the quality of life for its residents.