In the 1830s, settlers heading for the Oregon and Santa Fe Trails crossed the Missouri River at this point. Teams of oxen pulled the loaded wagons through the "cut " in the hillside you can still see ... Oregon and Santa Fe Trails
The "DB," as it is known, was established as a military prison in 1873. The buildings inside date from 1863 to 1964. The DB is the only military maximum security facility.
This USDB closed in 2003 and the inmates were moved to the new USDB on the west side of the fort. The 'castle'