Results: 1 - 6 of 6
Dec 31, 1982
Open File Report
… Iron, Lead Zinc, Lightweight Aggregate, Limestone, Magnetite, …
Aug 02, 2006
Data
Aug 02, 2006
Data
Aug 02, 2006
Data
Dec 31, 1977
Open File Report
… the best seam thickness and the aggregate footages of all seams 3 …
Dec 31, 1961
Earth Sciences Report
… sandstones and shales with an aggregate thickness of 4000 feet. …