George Washington (1732–1799)
Thomas Jefferson (1743–1826)
Theodore Roosevelt (1858–1919) and
Abraham Lincoln (1809–1865).
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.