Zinc and Lead Deposits of the Upper Mississippi Valley Bedrock Geology Metallic Minerals Rocks and Minerals Data and Resources B019 Zinc and Lead Deposits of the Upper Mississippi Valley Bain, H.F.; 1907 Report: 154 p. Download B019-plate02 Geologic Map of the Zinc and Lead Regions of the Upper Mississippi Valley [plate 2] 1907 Download B019-plate07 Map Showing Distribution of Crevices and Locations of Special Maps in the Upper Mississippi Valley Zinc and Lead Region [plate 7] 1907 Download B019-plate08 Map Showing Geology and Topography of the Dubuque Area With Structural Contours on the Base of the Galena Dolomite and Principal Crevices [plate 8] Ellis, E.E.; Bain, H.F.; Guilford, W.H.; 1907 Download Related Collections Bulletin View Bulletin