Mount Rushmore still disputed on the basis of the 1868 Treaty of Fort Laramie (see section "Controversy" below). Among American settlers, the peak was known variously as Cougar Mountain, Sugarloaf Mountain, Slaughterhouse Mountain, and Keystone Cliffs. It was named Mount Rushmore during a prospecting expedition by Charles Rushmore, David Swanzey (husband of Carrie Ingalls), and Bill Challis. Historian Doane Robinson conceived the idea for Mount Rushmore in 1923 to promote tourism in South Dakota. In 1924, Robinson persuaded sculptor Gutzon Borglum to travel to the Black Hills region to ensure the carving could be accomplished. Borglum had been involved in sculpting the
Solon Borglum on observations and drawings he had made at the U.S. Mail stables in Cincinnati. In 1898 the Art Academy awarded Borglum a scholarship that allowed him to go to Paris, where he matriculated at the Académie Julian as a student of Denys Puech. He met leading sculptors Emmanuel Fremiet and Augustus Saint-Gaudens, who gave him further encouragement. Borglum received a silver medal at the Exposition Universelle (1900) and another at the Pan-American Exposition in Buffalo, NY Borglum moved to the Silvermine neighborhood of New Canaan, Connecticut, where he helped found the "Knockers Club" of artists. His brother, Gutzon, lived in