Counties: Winnebago
Fenneman, N.M.;
1902
Report: 188 p.
Thwaites, F.T.;
1910
Map: Scale 1 in = 2 miles
Anderson, A.C.; Geib, W.J.; Hull, H.H.; Whitson, M.;
1929
Report: 34 p. + map (scale 1:63,360)
Map: Scale 1 in = 1 mile