Fort Boise was a fur trading post of the Hudson's Bay Company in Idaho. First built in 1834 on the Boise River about seven miles above its mouth, it was relocated in 1838 near the confluence of the Boise River and Snake River. It was a small adobe-walled fort, famous as a stopping point on the Oregon Trail. Partially destroyed by flood waters in 1853, it was finally abandoned. after the Indian War of 1855.

Source: Dictionary of American History by James Truslow Adams, New York: Charles Scribner's Sons, 1940