Set in a wide-open field with the jagged peaks of the Crazy Mountains rising behind it and shaded by stands of mature aspen trees, the Crazy Mountain Museum in Big Timber, Montana feels like stepping into a living time capsule. Among its highlights is the Lewis and Clark mural, honoring the famed expedition that once passed through this very landscape, a story preserved and shared by Steve Harvey, president of the board of directors.

The Crazy Mountain Museum is one of the few museums officially located along the Lewis and Clark Historic Trail. While the Corps of Discovery didn’t stop right here in town, their 1806 route passed through the very landscapes surrounding us. When Clark wrote in his journal about the plants he encountered near the Yellowstone River, he was describing the same prairies and riverbanks you see today.

That connection is reflected in a standout feature on our grounds: the Lewis and Clark Native Plant Garden. Planted in 2006 as part of the bicentennial celebration, it is one of only two gardens of its kind left in Montana. Every plant you see here, blanket flowers, chokecherries, rabbitbrush, wild bergamot, was collected or cataloged by Lewis and Clark during their journey. As you walk through, you’re not just looking at native botanicals, you’re seeing the living specimens that helped shape America’s understanding of the West.

Inside the museum, you’ll find plenty more stories of exploration and resilience, from our archaeological exhibit and replica 1907 Big Timber streetscape to our one-room Sourdough schoolhouse and a Norwegian stabbur. Each replica building on our grounds reflects the pioneer spirit that followed the expedition into Montana and is placed outdoors in its own quiet, dedicated area, allowing you to fully experience what it would have been like to live in or interact with these spaces.

For many visitors, the Lewis and Clark Native Plant Garden is where everything comes together, natural history, Native knowledge, and the spirit of exploration. Whether you’re tracing the National Historic Trail, cruising along I-90, or simply curious about Montana’s past, take a moment to walk the grounds, then come inside where you’ll find archaeological discoveries, pioneer tools, family heirlooms, and rotating exhibits that reveal how Sweet Grass County was built. Let yourself imagine the challenges, the triumphs, and the daily life of those who lived here a century ago.