Post at Grand River Indian Agency
Post at Grand River Indian Agency was a Federal military post at the Grand River Indian Agency between 1870 and 1875 in the Dakota Territory. It was located at the Missouri and Grand Rivers, near modern Wakpala, Corson County, South Dakota within the Standing Rock Indian Reservation.
Periodic flooding forced the transfer of the Indian Agency and the garrison to Fort Yates in North Dakota. The site is now underwater beneath Lake Oahe.
References
- South Dakota historical collections, Volume 8, Dept. of History, South Dakota State Historical Society, South Dakota, 1916, pp. 97-98 Map of site included.
Coordinates: 44°27′04″N 100°24′08″W / 44.45111°N 100.40222°W
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