Digital Maps and Geospatial Data | Princeton University
Pennsylvania: Confluence Quadrangle
- [Reston, Va.] : U.S. Geological Survey, 1933.
United States. Geological Survey. U.S.G.S. Alternate title: PA. Confluence. Polyconic projection. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1919 and 1920. Surveyed in cooperation with the state of Pennsylvania. Verso: The topographic maps of the United States.
- Topographic maps
- Call number:
- G3821.C2.s62.U5G4 Confluence
- Held by: