Fluorspar District of Illinois Historical Document Folder: Austin Brothers File: Austin Tract and Vicinity.tif UID: 3
Dates
Dataset Reference Date
2015-09-28
Info Date
1944-06-01
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Austin Brothers File: Austin Tract and Vicinity.tif Type: Map Author: Grogan, R. M. UID: 3
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Austin Brothers File: Austin Tract and Vicinity.tif Type: Map Author: Grogan, R. M. UID: 3