Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1971. Softcover. Item #42234
38 pages with maps, tables, graphs, and references, plus the required five folded plates in the rear pocket. Bound in original orange stiff paper covers with printing in black. Library stamp on the front cover, title page, and margin of each map. No other library markings, labels or pockets were ever present. A very good plus copy.