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
Little Bighorn River led a government expedition up the Big Horn River to the mouth of Big Horn Canyon, and then southeast along the base of the Big Horn mountains. En route to the Big Horn Canyon, and about 40 miles down the Big Horn River, he camped just below the mouth of the Little Bighorn on September 6, 1859. He noted in his journal for that day that the Indian name of the Big Horn river, into which the Little Bighorn empties, is "Ets-pot-agie", or Mountain Sheep River, and this generates the name of the Little Big Horn, "Ets-pot-agie-cate", or Little Mountain