Lead-Zinc District of Illinois Historical Document Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 32.pdf UID: 631
Dates
Dataset Reference Date
2015-09-28
Info Date
1943-05-29
Info Date
1944-01-25
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 32.pdf Type: Log Author: Alleman, H.R. UID: 631
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Gray Property - USGS Detailed Sample Study of Drill Holes File: Gray 32.pdf Type: Log Author: Alleman, H.R. UID: 631