The Sioux depended on the buffalo. They used every part of a buffalo. It provided lots of energy to the tribe. The bones were used to make tools (usually spear heads,digging tools, and other things.) The Sioux' last buffalo hunt was in 1882. They preserved meat by smoking it over a bonfire. They ate elk, deer, buffalo, and berries. They also ate different kinds of nuts like almonds. The Sioux enjoyed bison too, apart from buffalo.