Great Sioux War of 1876 Col. George Armstrong Custer and the Seventh Cavalry were ordered out from the main Dakota Column to scout the Rosebud and Big Horn river valleys. On June 25, 1876, they encountered a large village on the west bank of the Little Bighorn. The US troops were seriously beaten in the Battle of the Little Bighorn and nearly 270 men were killed, including Custer. Custer split his forces just prior to the battle and his immediate command of five cavalry companies was annihilated without any survivors. Two days later, a combined force consisting of Colonel Gibbon's column, along with Terry's headquarters
Bury My Heart at Wounded Knee Hills, angering the Lakota and Dakota living there. A peace council in 1875 tried to arrange for the US government to either purchase the mineral rights or outright ownership of the Black Hills, but both proposals were rejected by the Sioux. In 1876, a series of battles occur between the Sioux and US troops which initially ends when the Sioux defeat General Custer and his troops at the Battle of Little Bighorn on June 25. The humiliated US Army sends a peace council to sign a treaty that forces the Sioux out of the Black Hills to the Missouri River.