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
Gutzon Borglum the dedication ceremony on July 3, 1929. During the sculpture's unveiling, the plane scattered roses across the field as a salute to those North Carolinians who had fought and died at Gettysburg. Borglum died in 1941 due to complications during surgery and is buried at Forest Lawn Memorial Park, Glendale, California in the Memorial Court of Honor. His second wife, Mary Montgomery Williams Borglum (1874–1955) is interred alongside him. Gutzon Borglum John Gutzon de la Mothe Borglum (March 25, 1867 – March 6, 1941) was an American artist and sculptor. He is most associated with his creation of the Mount