Mount Roosevelt in South Dakota is maintained by the Black Hills National Forest as a recreational trail and picnic area where the 5,690-foot summit is dominated by the Friendship Tower--- a stone memorial that rises about 25 feet above the surrounding meadow.
Friendship Tower was built by Seth Bullock in 1919 in honor of his friend President Theodore Roosevelt. Bullock, a former sheriff of Deadwood, S.D., wanted to create a memorial of his friend’s life and a place where people could view wide open spaces that both Bullock and Roosevelt had become so fond of during their lives. He had met Roosevelt, then a deputy sheriff from Medora, N.D., in 1884. The two quickly became lifelong friends, Roosevelt later saying of Bullock, "Seth Bullock is a true Westerner, the finest type of frontiersman."