Lead-Zinc District of Illinois Historical Document Folder: IL-WI Stratigraphy Reports File: Spechts Ferry Station Iowa to Rockford Illinois.pdf UID: 851
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: IL-WI Stratigraphy Reports File: Spechts Ferry Station Iowa to Rockford Illinois.pdf Type: Report Author: Herbert, P. UID: 851
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: IL-WI Stratigraphy Reports File: Spechts Ferry Station Iowa to Rockford Illinois.pdf Type: Report Author: Herbert, P. UID: 851
Lead-Zinc District of Illinois Historical Document Folder: IL-WI Stratigraphy Reports File: Spechts Ferry Station Iowa to Rockford Illinois.pdf UID: 851