Lead-Zinc District of Illinois Historical Document Folder: Structure - General NW IL and Vicinity File: Field Studies of Joints.pdf UID: 967
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Structure - General NW IL and Vicinity File: Field Studies of Joints.pdf Type: Field Notes UID: 967
Summary
Historical Lead-Zinc District Document from Industrial Mineral Section Records Folder: Structure - General NW IL and Vicinity File: Field Studies of Joints.pdf Type: Field Notes UID: 967