http://www.pbs.org/weta/thewest/resources/archives/four/sandcrk.htm

Among the killed were all the Cheyenne chiefs, Black Kettle, White Antelope, Little Robe, Left Hand, Knock Knee, One Eye, and another, name unknown. Not a single prominent man of the tribe remains, and the tribe itself is almost annihilated. The Arapahoes probably suffered but little. It has been reported that the chief Left Hand, of that tribe, was killed, but Colonel Chivington is of the opinion that he was not. Among the stock captured were a number of government horses and mules, including the twenty or thirty stolen from the command of Lieutenant Chase at Jimmy's camp last summer.

The Indian camp was well supplied with defensive works. For half a mile along the creek there was an almost continuous chain of rifle-pits, and another similar line of works crowned the adjacent bluff. Pits had been dug at all the salient points for miles. After the battle twenty-tree dead Indians were taken from one of these pits and twenty-seven from another.

Whether viewed as a march or as a battle, the exploit has few, if any, parallels. A march of 260 miles in but a fraction more than five days, with deep snow, scanty forage, and no road, is a remarkable feat, whilst the utter surprise of a large Indian village is unprecendented. In no single battle in North America, we believe, have so many Indians been slain.