Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1955. Softcover. Item #42232
56 pages with map, tables, graphs, figures, bibliography and index, plus the required five folded plates in the rear pocket. Bound in original orange stiff paper covers with printing in black. Spine faded. Library stamp on the front cover. No other library markings, plates or pockets were ever present. A very good plus copy.