The Crazy Mountain Museum houses a collection of artifacts that have touched the lives of those who call or have called Sweet Grass County home. Exhibits range from archeological and geological finds to the Pioneer Room featuring early settlers and their families. Check out a replica of 1907 Big Timber, Jack Hines paintings of Sweet Grass County called Historic Crossroads, a replica Norwegian stabbur, a tipi, a one-room schoolhouse, the widely-acclaimed gardens, and much more.

The Lewis and Clark Native Plant Garden is a beautiful garden created by the Rivers Across Lewis & Clark Sweet Grass County Bicentennial group. Montana native plants were considered significant discoveries and were collected by Lewis and Clark between 1805 and 1806. The garden showcases the plants collected by the expedition and contains interpretive signs containing interesting facts about the expedition.