The monument is being carved out of Thunderhead Mountain, on land considered sacred by some Oglala Lakota, between Custer and Hill City, roughly 17 miles (27 km) from Mount Rushmore. The sculpture's final dimensions are planned to be 641 feet (195 m) long and 563 feet (172 m) high. The arm of Crazy Horse will be 263 feet (80 m) long and the head 87 feet (27 m) high; by comparison, the heads of the four U.S. Presidents at Mount Rushmore are each 60 feet (18 m) high.