The Gros Ventre also known as the Aaniiih, A'aninin, Haaninin, Atsina, and White Clay
The Gros Ventre also known as the Aaniiih, A'aninin, Haaninin, Atsina, and White Clay, are a historically Algonquian-speaking Native American tribe located in north central Montana. Today the Gros Ventre people are enrolled in the Fort Belknap Indian Community of the Fort Belknap Reservation of Montana, a federally recognized tribe with 3,682 enrolled members, that also includes Assiniboine people or Nakoda people, the Gros Ventre's historical enemies. The Fort Belknap Indian Reservation is in the northernmost part of Montana, just south of the small town of Harlem, Montana. Chiefs: The Belly Government Council The tribal self-name ʔɔʔɔɔ̋ɔ́niinénnɔh (adapted as A'aninin, Aaniiih, or Haaninin) means "White Clay People". The French used the term Gros Ventre, which was mistakenly interpreted from their sign language. They were once known as the Gros Ventres of the Prairies, while the Hidatsa people were once called the Gros Ventres of the Missouri. The Piegan Blac