In the Black Hills of Dakota the Whites and the Sioux Indians made a treaty. The U.S. Government promised that no one would be on their land, not even to travel through it. There was a rumor that the hills had gold and Custer led his men to find the gold. This was on the Sioux's land so the tribe protested against the troops being on their land. The leader of the tribe, Sitting Bull, would not sell the land he originally owned.