Fluorspar District of Illinois Historical Document Folder: Geiger Counter Work (excl Hicks Dome) File: Additional localities on Geiger Counter Survey.pdf UID: 725
Dates
Dataset Reference Date
2015-09-28
Info Date
1954-10-26
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Geiger Counter Work (excl Hicks Dome) File: Additional localities on Geiger Counter Survey.pdf Type: Report UID: 725
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Geiger Counter Work (excl Hicks Dome) File: Additional localities on Geiger Counter Survey.pdf Type: Report UID: 725