17 September 1982.
South Dakota, United States
Locality: Center of NW 1/4 of Section 29, T95N, R55W, Yankton County.
Coordinates: 43.0500, -97.5000
(Map it)
Georeference protocol: Lat/Lon determined from GIS
Environment description: Gravel pit.
Comment: Site 12. Lat/lon accurate to county level.
Collector(s):