The Fort Peck Assiniboine and Sioux Tribes are a Native American tribe located in northeastern Montana. They are composed of two distinct groups: the Assiniboine and the Sioux. The tribe's reservation, known as the Fort Peck Indian Reservation, covers over 2 million acres and is home to various cultural and economic activities. The tribes have a rich history and maintain their traditions through various programs and events. They engage in economic development, including agriculture and tourism, to support their community. The tribes also focus on preserving their languages and cultural heritage for future generations.