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New Jersey: Lake Hopatcong Quadrangle
- [Reston, Va.] : U.S. Geological Survey, 1905.
United States. Geological Survey. U.S.G.S. Alternate title: Lake Hopatcong. In upper margin: Topography. Relief shown by 20 feet contour intervals. Triangulation by U.S. Coast and Geodetic Survey. Topography by the Geological Survey of New Jersey. Surveyed in 1881. Revised in 1903.
- Topographic maps and Hopatcong, Lake (N.J. : Lake)—Maps
- Call number:
- G3811.C2.s62.U5G4 Lake Hopatcong
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