Digital Maps and Geospatial Data | Princeton University
Pennsylvania: Norristown sheet
- [Reston, Va.] : U.S. Geological Survey, 1895.
United States. Geological Survey. U.S.G.S. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1894. Triangulation by S. S. Gannett. Verso: Description of the topographic map of the United States.
- Topographic maps and Norristown (Pa.)—Maps
- Call number:
- G3821.C2.s62.U5G4 Norristown
- Held by: