One of a series of topographical maps issued by the United States Department of the Army Corps of Engineers.
State of Maine represented by the Public Utilities Commission, Bethel Quadrangle, Oxford County (N44.15/W70.45). Scale 1: 62 500.
Topography, culture and drainage in part revised by the Engineer, First Corps Area, from aerial photographs taken 1940 by Flight "B", 1st Photographic Squadron, Air Corps, U.S. Army.
