Quaternary Geologic Map of the Des Moines 4 X 6 Quadrangle, United States (GMC-36)

Quaternary Geologic Map of the Des Moines 4 X 6 Quadrangle, United States (GMC-36) Hallberg, G. R., Lineback, J.A., Mickelson, D.M., Knox, J.C., Goebel, J. E., Hobbs, H.C., Whitfield, J.W., Ward, R.A., Boellstorf, J.D., Swinehart, J. S., Dreeszen, V. H., (1:1,000,000; 1991), size 54" x 35". Description: Out of print, printed color copy available.