Fluorspar District of Illinois Historical Document Folder: Ozark-Mahoning Mining File: Ozark Presentation.pdf UID: 428
Dates
Dataset Reference Date
2015-09-28
Info Date
1947-10-15
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Ozark-Mahoning Mining File: Ozark Presentation.pdf Type: Correspondence Author: Wisco, R. K. UID: 428
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Ozark-Mahoning Mining File: Ozark Presentation.pdf Type: Correspondence Author: Wisco, R. K. UID: 428