Bighorn River river passes through Yellowtail Dam and Afterbay Dam. The river turns to the northeast and enters the Great Plains. At Hardin the river is joined by the Little Bighorn River. Approximately downriver from the Little Bighorn, in Big Horn County, the Bighorn empties into the Yellowstone. The Bighorn River has also been known as the Great Horn River, Le Corne and Iisaxpúatahcheeaashisee in the Apsáalooke language which translates to English as "Large Bighorn Sheep River". Bighorn River The Bighorn River is a tributary of the Yellowstone, approximately long, in the states of Wyoming and Montana in the western United States.
Little Bighorn River Sheep river. The trappers who came to the Big Horn Mountains in the fur trapping era continued the usage of the English translation of the Indian names, and the names for both rivers have come down through history. Captain Reynolds had Jim Bridger as a guide and interpreter, so the information about the source of the name was confirmed by Reynolds from Indian sources through Bridger. According to the USGS, the Little Bighorn River has three other official variants of the name, including Little Horn River, Custer River and Great Horn River. Local people who live in the valley and