Aeromagnetic map of the Wagontown quadrangle, Chester County, Pennsylvania [map] / by Randolph W. Bromery, John R. Henderson, Gerald L. Zandle, and others
Scale 1:24 000 (W 75°52ʹ30ʺ--W 75°45ʹ00ʺ/N 40°07ʹ30ʺ--N 40°00ʹ00ʺ).
Note
Prepared in cooperation with the Commonwealth of Pennsylvania, Dept. of Internal Affairs. "Base map by Topographic Division, U.S. Geological Survey." Includes "Index map of Pennsylvania showing area of aeromagnetic survey 1956-57."