Fort Sully (2)
Established 25 Jul 1866 as a replacement for the unhealthy Fort Sully (1). The new location was about 25 miles north of Pierre, South Dakota near Lake Oahe.
Most of the garrison was withdrawn on 30 Oct 1894 and by 30 Nov 1894 the Army had completely abandoned the post and the property was transferred to the Interior Department.
The site is under Lake Oahe as a result of a dam built in 1948. A marker is reportedly located at the Sully County Courthouse in Onida, South Dakota.
Visited: Area 27 Sep 2010