Lead-Zinc District of Illinois Historical Document Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 22.pdf UID: 620
Dates
Dataset Reference Date
2015-09-28
Info Date
1943-04-17
Info Date
1943-05-31
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 22.pdf Type: Log Author: Alleman, H.R. UID: 620
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 22.pdf Type: Log Author: Alleman, H.R. UID: 620