Digital Maps and Geospatial Data | Princeton University
Maryland--Pennsylvania: Havre de Grace Quadrangle
- [Reston, Va.] : U.S. Geological Survey, 1942.
- United States. Geological Survey. U.S.G.S. Alternate title: Havre de Grace, MD.--PA. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1939-1940. Polyconic projection. Verso: The topographic maps of the United States.
- Topographic maps and Havre de Grace (Md.)—Maps
- Call number:
- G3841.C2.s62.U5G4 Havre de Grace
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