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 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 and is above sea level. blank">Mount Rushmore, South Dakota (November 1, 2004). Peakbagger.com. URL accessed on March 13, 2006. 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. Mount Rushmore facts, National Park Service.
