The Black hills found in South Dakota are so named because of the dark color of the pines they are covered with. The great attraction of this area is Mount Rushmore. The 18-meter faces of the four most famous American presidents are modeled on its tall granite wall. He is working on creating another figure - the legendary Sioux chieftain, the Crazy Horse, who defeated General Custer's troops in 1876. The figure will be the largest monument on the ground, 173 meters high and 197 meters long.