Fluorspar District of Illinois Historical Document Folder: Mississippian - Cave in Rock File: Misc Maps.pdf UID: 382
Dates
Dataset Reference Date
2015-09-28
Info Date
1936-10-17
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Mississippian - Cave in Rock File: Misc Maps.pdf Type: Drawing/Illustration Author: Workman, L.E. UID: 382
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Mississippian - Cave in Rock File: Misc Maps.pdf Type: Drawing/Illustration Author: Workman, L.E. UID: 382