Lead-Zinc District of Illinois Historical Document Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 12.pdf UID: 609
Dates
Dataset Reference Date
2015-09-28
Info Date
1943-03-13
Info Date
1943-04-27
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 12.pdf Type: Log Author: Alleman, H.A. UID: 609
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 12.pdf Type: Log Author: Alleman, H.A. UID: 609