Mount Rushmore the headquarters for their film "". "" also depicts this location as a secret cover for a fictional gold city. The memorial was also famously used as the location of the climactic chase scene in Alfred Hitchcock's 1959 movie "North by Northwest". Deep Purple's breakthrough album, 1970's "In Rock", parodies the sculpture. On August 11, 1952, the U.S. Post Office issued the Mount Rushmore Memorial commemorative stamp on the 25th anniversary of the dedication of the Mt. Rushmore National Memorial in the Black Hills of South Dakota. On January 2, 1974, a depicting the monument was also issued. Notes Further
Mount Rushmore 31, 1941, Gutzon Borglum and 400 workers sculpted the colossal 60 foot (18 m) high carvings of U.S. presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln to represent the first 130 years of American history. These presidents were selected by Borglum because of their role in preserving the Republic and expanding its territory. The carving of Mount Rushmore involved the use of dynamite, followed by the process of "honeycombing", a process where workers drill holes close together, allowing small pieces to be removed by hand. In total, about of rock were blasted off the mountainside. The image of