During the Centennial of the Lewis and Clark Expedition from 1903 to 1909, the little-known Sacajawea became a national heroine. Activists for women's rights especially embraced her as a symbol of the importance of women in American history, and writers and artists celebrated her in books, paintings, statues, and pageants. At Lemhi Pass, the Sacajawea Memorial Area arose from the dream of Laura Tolman Scott of Armstead, Montana, who joined the Daughters of the American Revolution in 1907 and became one of its leaders. The organization, founded in 1897 to preserve American history, and Scott's own efforts helped preserve many historical sites locally and in the Pacific Northwest. Working with citizens of Beaverhead County, Montana, and Lemhi County, Idaho, she campaigned for many years to create this special memorial to Sacajawea, one of her most cherished places.