Lead-Zinc District of Illinois Historical Document Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 31.pdf UID: 630
Dates
Dataset Reference Date
2015-09-28
Info Date
1943-05-15
Info Date
1944-01-08
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 31.pdf Type: Log Author: Alleman, H.R. UID: 630
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 31.pdf Type: Log Author: Alleman, H.R. UID: 630