EarthWorks Geospatial Catalog

Pennsylvania: Sewickley Quadrangle

Description
United States. Geological Survey. U.S.G.S. Alternate title: Sewickley, PA. Polyconic projection. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1903 and 1905-1906. Surveyed in cooperation with the State of Pennsylvania. Verso: The topographic maps of the United States.
Publisher
[Washington, D.C.] : U.S. Geological Survey, 1908.
Subject(s)
Topographic maps and Sewickley (Pa.)—Maps
Held by
Princeton
More details at