Lead-Zinc District of Illinois Historical Document Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 5.pdf UID: 634
Dates
Dataset Reference Date
2015-09-28
Info Date
1943-02-17
Info Date
1943-03-12
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 5.pdf Type: Log Author: Agnew, A.F. UID: 634
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 5.pdf Type: Log Author: Agnew, A.F. UID: 634