Meaning literally “Big Belly,” Gros Ventre is a misnomer for a tribe more properly known as the Atsina. The Gros Ventre represent the northernmost tribe of the Arapaho and belong to the Algonquian linguistic family. After moving to the Montana plains from their Minnesota homeland in the late 1700s, they allied with the Blackfeet, sharing in their dominance over the prairies. The Fort Belknap Reservation was established in 1888 for the Gros Ventre and Assiniboin. The Gros Ventre tribe now claims about 2,500 members.
© W.C. McRae & Judy Jewell from Moon Montana, 7th Edition