Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1935. Softcover. Item #45622
101 pages with photographs, foldout map, and index, plus the two folded map plates in the rear pocket. Bound in original gray thick paper covers printed in black. Upper spine bumped and chipped. A few stamps of geologist Siemon Wm. Muller. A very good copy.