column was at this time encamped on the north side of the Yellowstone, near by.
Col. Gibbon of the 7th Infantry had left Fort Ellis in Montana about the middle of May, with a force consisting of six companies of his regiment, and four companies of the 2d Cavalry under Major J.S. Brisbin. He had marched eastward down the north bank of the Yellowstone to the mouth of the Rosebud, where he encamped about June 1st.
Gen. Terry now consulted with Gibbon and Custer, and decided upon a plan for attacking the Indians who were believed to be assembled in large numbers near Big Horn River. Custer with his regiment was to ascend the valley of the Rosebud, and then turn towards Little Big Horn River, keeping well to the south. Gibbon's troops were to cross the Yellowstone at the mouth of Big Horn River, and march up the Big Horn to its junction with the Little Big Horn, to co-operate with Custer. It was hoped that the Indians would thus be brought between the two forces so that their escape would be impossible.
Col. Gibbon's column was immediately put in motion for the mouth of the Big Horn. On the next day, June 22d, at noon, Custer announced himself ready to start, and drew out his regiment. It consisted of 12 companies, numbering 28 officers and 747 soldiers. There were also a strong detachment of scouts and guides, several civilians, and a supply train of 185 pack mules. Gen. Terry reviewed the column in the presence of Gibbon and Brisbin, and it was pronounced in splendid condition. "The officers clustered around Terry for a final shake of the hand, the last good-bye was said, and in the best of spirits,
