The Fort Thompson Mounds are a series of low earthen mounds within the Crow Creek Reservation. Extending for a distance of about 6 miles, they are one of the largest known complexes of burial mounds in the Great Plains.
The Fort Thompson Mounds are a series of low earthen mounds within the Crow Creek Reservation. Extending for a distance of about 6 miles, they are one of the largest known complexes of burial mounds in the Great Plains.