Imagine crouching in the grass with a bison hide on your back while massive 2,000 pound animals graze a few feet from you. Moments later, you bellow like a stressed calf, wanting the herd to follow the noise. You continue to do until you are close to a cliff and then you start running as fast as you can towards the cliff while a herd of 40 bison stampede behind you. While this scene would never occur today, it would have a thousand years ago when Plains Indians hunted bison. Long before the acquisition of the horse, Plains Indians hunted bison on foot. For the Plains Indians, hunting was a way of life and they developed numerous solitary and communal hunting techniques. The buffalo jump and the buffalo impound commonly represent two primary group hunting methods used by the Plains Indians. It is important to note that the specific hunting strategies and techniques differed slightly depending on the tribe and geography.