Little Bighorn River their ruling, holding that the bed of the Bighorn River was not included within the grant of tribal lands to the Crow Tribe in their prior treaties, and thus upon the admission of Montana to the Union the bed of the Big Horn River (and thus the right to fish on the Big Horn River) passed from federal ownership to the state of Montana. In Montana, from the mouth of the river at Hardin upstream to about 8 miles above Wyola, there is paved and gravel road access to the Little Bighorn Valley, and upstream from this point to the
Bighorn Mountains of the Little Bighorn, Tongue, and Powder rivers. Bighorn Canyon National Recreation Area consists of approximately within the Bighorn Mountains. It includes Bighorn Lake, a reservoir damming the Bighorn River. In 2015, a sudden, huge 'gash' was found in Wyoming's Big Horn Mountains. The Wyoming Geological Survey studied the area and determined that "The Crack" may be the result of an "apparent active landslide" in the southern end of the Big Horn Mountains. The Bighorns are a popular destination for hiking, backpacking, fly fishing, horse back riding and increasingly ATV riding and snowmobiling. Trails wind through most of the national