Fluorspar District of Illinois Historical Document Folder: Shelterville Area File: Diamond Drilling Records.pdf UID: 512
Dates
Dataset Reference Date
2015-09-28
Info Date
1947-04-05
Info Date
1949-05-07
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Shelterville Area File: Diamond Drilling Records.pdf Type: Log UID: 512
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Shelterville Area File: Diamond Drilling Records.pdf Type: Log UID: 512