Mule deer, bighorn sheep and fox are common. Elk and bighorn sheep are present but uncommon. Mule deer and desert bighorn sheep are the ungulates that frequent the river corridor. Desert bighorn sheep and mule deer sometimes stop by the dam for a drink. Jojoba foliage provides year-round food for many animals, including deer, javelina, bighorn sheep, and livestock. Black Elk was present at the Battle of the Little Bighorn. Some areas are habitats for the Peninsular bighorn sheep, often called desert bighorn sheep. Also, the treeless alpine habitats are the areas favored by Sierra Nevada bighorn sheep. There are plans to reintroduce the bighorn sheep to this park. Most scientists currently recognize three subspecies of bighorn. In 1998, they bought a cattle ranch in Bighorn, Montana. The Crows reported Sioux Indians in the Bighorn area from 1871. In the wake of Custer's defeat at the Little Bighorn, the Army altered its tactics. Eastern Montana was the location of the Battle of the Little Bighorn. The Battle of the Little Bighorn stood on the Crow reservation.