Little Bighorn River Canyon in Wyoming, the Little Bighorn receives other mountain streams as tributaries including the Dry Fork (which despite its name maintains a permanent, year-round significant flow of water into the Little Bighorn), and the West Fork of the Little Bighorn. After issuing from its canyon at the Montana-Wyoming line the Little Bighorn flows northward across the Crow Indian Reservation. The river flows past the towns of Wyola, Lodge Grass and Crow Agency, and joins the Bighorn River near the town of Hardin. At Wyola, Montana, the Little Bighorn receives the flow of Pass Creek flowing north from the Bighorn Mountains.
Battle of the Little Bighorn In 1805, fur trader Francois Antoine Larocque reported joining a Crow camp in the Yellowstone area. On the way he noted that the Crow hunted buffalo on the "Small Horn River". The US built Fort Raymond in 1807 for trade with the Crow. It was located near the confluence of the Yellowstone and the Bighorn River, about north of the future battlefield. The area is first noted in the 1851 Treaty of Fort Laramie. In the latter half of the 19th century, tensions increased between the Native inhabitants of the Great Plains of the US and encroaching settlers. This resulted