Bighorn River Wind River Canyon near the town of Thermopolis. From there, the river flows through the Bighorn Basin in north central Wyoming, passing through Thermopolis and Hot Springs State Park. At the border with Montana, the river turns northeast, and flows past the north end of the Bighorn Mountains, through the Crow Indian Reservation, where the Yellowtail Dam forms the Bighorn Lake reservoir. The reservoir and the surrounding canyon are part of the Bighorn Canyon National Recreation Area. The Little Bighorn River joins the Bighorn near the town of Hardin, Montana. Approximately fifty miles farther downriver, the Bighorn River ends where
Little Wolf the Little Bighorn, but played a part before and after the battle. Some scouts from his camp apparently found some food left behind by Custer's attack force, and were observed by U.S. military scouts. This fact was reported to Custer, who incorrectly assumed he had been discovered by the main camp of Sioux and Cheyenne on the Little Bighorn, and urgently pressed on with his attack, trying to prevent the escape of the Indians. After the battle, Little Wolf arrived and was detained and almost killed by the angry Sioux, who suspected he was scouting for the whites. Only his