Montana Historical Society Museum

From the Wikipedia page on the Montana Historical Society

The Montana Historical Society Museum, also known as Montana's Museum, is located in Helena, Montana. Open year round, the museum's displays include the state's fine art, history, archaeological and ethnological artifacts. The Mackay Gallery of Russell Art features works by Western-artist Charles M. Russell in many media. Other displays include Native Americans, settlers and home life, mining, frontier weapons and a white bison mount.