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6
PDF-1
TitleDevil's den
Date Created1976-06
DescriptionSurveyed in 1960 by Metropolitan Grotto, the map shows entrances and crawlways under shelves.
Time Period1970-1979
7
PDF-1
TitleCave location map: Base map atlas sheet no. 40
Date Created1976-06
DescriptionThe Cave Location Map lists 142 caves in the following counties: Hunterdon, Morris, Somerset, Sussex, and Warren. It features locations of Precambrian Franklin Marble, Cambro Ordovician Kittatinny...