Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1965. Softcover. Item #43395
A description of the stratigraphy and structure of one of the world's largest lead-, zinc-, and silver- producing mining districts. 139 pages with tables, photographs, index and references. The required ten large folded plates are present in the cover pocket. Bound in thick gray paper covers printed in black. Book and map pocket within gray paper covered board folder. Front hinge of the folder repaired. A near fine copy.