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U.S. Geological Survey Bulletin 1666
Geologic and Grade Tonnage Information on Tertiary Epithermak Precious and Base Metal Vein Districts Associated with Volcanic Rocks
By Dan L. Mosier, W. David Menzies, and Frank J. Kleinhampl 1986
First Edition , Department of The Interior
39 pages pages includes black and white maps and figures
Very good condition, no highlighting or underlining or tears.
Please see all photos they are part of the description.
