“Ancient River Warren Channel”
547
1967
Roberts
(Note: any text in italics has been taken from the official SDSHS records.)
Marker Text
Has been designated a registered National Landmark
Under the provisions of the Historic Sites Act of August 21, 1935 this site possess exceptional value in illustrating the natural history of the United States.
U.S. Department of the Interior National Park Service
1967
Location
Roberts County, SD 10 10 miles east and south of Sisseton overlooking Traverse Lake (1988)