Big Horn River, the largest branch of the Yellowstone, rises in the Rocky Mountains in the northwest part of Wyoming, where it is called the Wind River. It enters the Yellowstone at Big Horn city, in Montana, and is about 350 miles in length.
See also Bighorn River on Wikipedia, and the disclaimer.
Big Horn River, the largest branch of the Yellowstone, rises in the Rocky Mountains in the northwest part of Wyoming, where it is called the Wind River. It enters the Yellowstone at Big Horn city, in Montana, and is about 350 miles in length.