Lead-Zinc District of Illinois Historical Document Folder: Geology Aids Prospecting for Zinc File: Survey Geophysicists at Work.tif UID: 842
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Geology Aids Prospecting for Zinc File: Survey Geophysicists at Work.tif Type: Photograph UID: 842
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Geology Aids Prospecting for Zinc File: Survey Geophysicists at Work.tif Type: Photograph UID: 842