Mount Rushmore National Memorial
Mount Rushmore National Memorial, near Keystone, South Dakota, is a monumental granite sculpture located within the United States Presidential Memorial that represents the first 150 years of the history of the United States of America. With 60-foot (18 m) sculptures of the heads of former United States presidents: George Washington (1732–1799), Thomas Jefferson (1743–1826), Theodore Roosevelt (1858–1919), and Abraham Lincoln (1809–1865). These four are high ranking U.S. Presidents. The entire memorial covers 1,278.45 acres (5.17 km²) and is 5,725 feet (1,745 m) above sea level. It is managed by the National Park Service, a bureau of the United States Department of the Interior. The memorial attracts approximately two million people annually.