Fluorspar District of Illinois Historical Document Folder: Mississippian - Cave in Rock File: Handwritten Notes.pdf UID: 379
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Mississippian - Cave in Rock File: Handwritten Notes.pdf Type: Field Notes UID: 379
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Mississippian - Cave in Rock File: Handwritten Notes.pdf Type: Field Notes UID: 379