20 September 1982.
South Dakota, United States
Locality: SE 1/4 of SW 1/4 of Section 23, T92N, R51W, Clay County.
Coordinates: 42.9167, -96.9583
(Map it)
Georeference protocol: Lat/Lon determined from GIS
Environment description: Roadside ditch.
Comment: Site 15. Lat/lon accurate to county level.
Collector(s):