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
Mount Spokane State Park Mount Spokane State Park Mount Spokane State Park is a public recreation area located in the Selkirk Mountains, northeast of the city of Spokane, Washington. The state park surrounds Mount Spokane and other peaks including Mount Kit Carson, Beauty Mountain, and Quartz Mountain. The park receives of snow annually and is home to Mount Spokane Ski and Snowboard Park as well as an extensive system of trails for hiking, biking, and horseback riding. As of 2018, Washington State Parks reported its acreage as , making it Washington's largest state park, slightly ahead of Riverside State Park () which lies 23