Fluorspar District of Illinois Historical Document Folder: Hoeb Mine File: Hoeb Mine.pdf UID: 289
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Hoeb Mine File: Hoeb Mine.pdf Type: Map Author: Saxby, D. B. UID: 289
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Hoeb Mine File: Hoeb Mine.pdf Type: Map Author: Saxby, D. B. UID: 289