Atsina is a Native American tribe that is part of the larger Assiniboine group. They primarily reside in the northern Great Plains region of the United States, particularly in areas of Montana. The Atsina people have a rich cultural heritage, including traditional practices, languages, and social structures. Historically, the Atsina were known for their nomadic lifestyle, relying on hunting and gathering for sustenance. They often followed the migration patterns of bison, which were central to their way of life. Today, the Atsina continue to preserve their cultural identity while engaging with modern society.