Counties: Statewide
Bean, E.F.;
1949
Map: Scale 1:1,000,000
1939
1928
Hotchkiss, W.O.; Thwaites, F.T.;
1911
Map: 54 in x 62 in, scale 1:380,160
Lapham, I.A.;
1869
Nichols, S.A.; Vennie, J.G.;
1991
Report: 19 p.
Nichols, S.A.; Martin, Ronald;
1990
Database: 27 p.
Patterson, G.L.; Zaporozec, A.;
1987
Report: 38 p.
Attig, J.W.; Baker, R.W.; Brownell, J.; Clayton, Lee; Johnson, M.D.; Muldoon, M.A.;
1988
Report: 61 p.
House, L.B.;
1985
Report: 84 p.
Erickson, R.M.; Cotter, R.D.;
1983
Report: 139 p.
Novitzki, R.P.;
1982
Report: 22 p.
Kammerer, P.A., Jr.;
1981
Report: 39 p.
Friz, T.O.;
1975
Preston, J.; Strauss, E.; Friz, T.O.;
1974
Report: 43 p.
Preston, J.; McKeever, P.E.;
Report: 111 p.
Holt, C.L.R., Jr.; Skinner, E.L.;
1973
Report: 148 p.
Erickson, R.M.;
1972
Report: 40 p.
Atkinson, R.F.; Babcock, L.C.; Clark, D.L.; Froming, G.T.; Melby, J.H.; Miller, J.F.; Schumacher, D.;
1971
Report: 151 p.
Ostrom, M.E.;
1970
Report: 67 p.