24 June 2011.
South Dakota, United States
Locality: Approximately 300 feet northeast of small dam, 291st Avenue south from War Creek Road, east of Highway 83, Fort Pierre National Grasslands, Fort Pierre.
Coordinates: 44.1946, -100.3262
(Map it)
Georeference protocol: Lat/lon determined by unknown method
Environment description: Entrance to biennially grazed area.
Comment: Population of hundreds.
Collector(s):