Fort Abraham Lincoln log scouts' quarters. Water was supplied to the fort by being hauled from Missouri River in wagons, while wood was supplied by contract. By 1873, the 7th Cavalry moved into the fort to ensure the expansion of the Northern Pacific Railway. The first post commander of the expanded fort was Lieutenant Colonel George A. Custer, who held the position until his death in 1876. In 1876, the Army departed from here as part of the Great Sioux War of 1876-77, resulting in Custer's defeat at the Battle of the Little Bighorn, where they were to push the non-treaty Indians back
Yellowstone Expedition of 1873 of the hill along the Yellowstone River. George Custer, with Companies A and B of the 7th Cavalry under the command of Captain Myles Moylan scouted to the west ahead of Stanley's column. Custer's group consisted of 86 enlisted men, 4 officers, and Indian scouts. Custer's brother, First Lieutenant Thomas Custer, and his brother-in-law, First Lieutenant James Calhoun, accompanied him. Shots were exchanged with Sioux Warriors near the Yellowstone River early in the battle, and George Custer's men formed a skirmish line. A volley from the line distracted the pursuing Indians enough to halt the warriors' charge. Custer had Captain