Lead-Zinc District of Illinois Historical Document Folder: Geochem Prospecting - 1954 (and Techniques) File: Misc Notes and Maps.pdf UID: 795
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Geochem Prospecting - 1954 (and Techniques) File: Misc Notes and Maps.pdf Type: Map UID: 795
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Geochem Prospecting - 1954 (and Techniques) File: Misc Notes and Maps.pdf Type: Map UID: 795