In May 1805, as the Lewis and Clark expedition paddled up the Missouri River, a howling gust of wing suddenly tipped over one of the canoes. The men paddled to shore, leaving behind precious supplies. But Sacagawea jumped in the water, rescuing important journals and equipment. Throughout Lewis and Clark's journey in the uncharted American West, this young America Indian woman proved to be an invaluable member of the expedition. Sacagawea served as translator and guide, all while caring for her infant son. Sacagawea's life may have been short, but her exploits on this monumental mission made her an American hero.