Sacagawea Peak, the highest mountain in Montana’s Bridger Range, rises in the state’s southwestern mountains and bears the name of Sacagawea, the Lemhi Shoshone woman who traveled with the Lewis and Clark Expedition. That connection ties the peak to a defining journey in the history of the American West. The mountain is a popular destination for hikers, with a short but steep route that begins at 7,788 feet and climbs about 1,800 feet over 2 miles to the summit. Snow lingers in its chutes into early summer, and in favorable years local skiers use those snowfields through August.