Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1915. Softcover. Item #43611
121 pages with photographs, tables, and fold out plate showing sections, plus color folded map in the rear pocket. Bound in gray stiff paper covers printed in black. Rear pocket split at the folds, however the map is unaffected and seems to have never been opened. The book itself is good.