Pennsylvania: Hallton Quadrangle. 15-minute series
- United States. Geological Survey. U.S.G.S. Alternate title: Hallton PA. Polyconic projection. Relief shown by 20 feet contour interval and spot heights. Surveyed in 1940. Verso: The topographic maps of the United States.
- [Washington, D.C.] : U.S. Geological Survey, 1943.
- Topographic maps
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