Counties: Statewide None: 1974
Zaporozec, A.;
1974
Report: 100 p.
1978
Report: 39 p.
Ervin, C.P.; Hammer, S.;
Map: Scale 1:500,000; scanned onto two pages
Report: 13 p.
Preston, J.; Strauss, E.; Friz, T.O.;
Report: 43 p.
Wisconsin Geological and Natural History Survey;
Report: 1 p.
