27 September 1982.
South Dakota, United States
Locality: NW 1/4 of NW 1/4 of Section 29, T92N, R49W, Union County.
Coordinates: 42.8167, -96.6944
(Map it)
Georeference protocol: Lat/Lon determined from GIS
Environment description: Gravel pit.
Comment: Site 25. Lat/lon accurate to county level.
Collector(s):