Order by Best Match A - Z Z - A Oldest Newest Go 1 publication found Series: Information Circular Authors: De Geoffroy, J. Counties: Grant Filter Results Geochemical Prospecting by Spring Sampling in the Southwest Wisconsin Zinc Mining Area IC10 Geochemical Prospecting by Spring Sampling in the Southwest Wisconsin Zinc Mining Area De Geoffroy, J.; 1969 Report: 28 p. IC10-plate01 Geochemical Survey by Spring Sampling Method: Southwest Wisconsin Zinc-Lead Area, Grant, Iowa, and Lafayette Counties 1969 Map: 37.8 in x 24.5 in, scale 1:125,000
