Pennsylvania: Troy Quadrangle.

Publisher:: [Washington, D.C.] : U.S. Geological Survey, 1923.
Access:: Public
Description:: United States. Geological Survey. U.S.G.S. Alternate title: Trout Run, PA. Polyconic projection. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1921. Surveyed in cooperation with the State of Pennsylvania. Verso: The topographic maps of the United States.
Subject(s):: Topographic maps
Call number:: G3821.C2.s62.U5G4 Trout Run
Held by:: Princeton

Digital Maps and Geospatial Data | Princeton University