Fort Assiniboine Historic Site, Northern Agricultural Research Center [MT]
The Fort Assinniboine Historic Site preserves the site of what was once the largest military fort west of the Mississippi River, with 104 structures over 700,000 acres. Founded in 1879, the soldiers of Fort Assinniboine protected settlers from Sitting Bull's Lakota Sioux and other Native Americans. Other responsibilities included patrolling the U.S.-Canada border and preventing the Blackfoot Confederacy, Montana Indian Reservations, and Canadian Native Americans from acting against Euro-American settlers. The fort's location was selected as the nexus of several Native American trails. The site currently serves as an agricultural research center.
The site offers guided tours. Reservations are required for groups.