The 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 Limestones, Ordovician Jacksonburg Formations, and Silurian-Devonian Limestones.63.5 x 48.3 cmBulletin 70, Plate 1JPEGhttps://doi.org/doi:10.7282/T3N878TGengPublicCave location map: Base map atlas sheet no. 40MapsNew Jersey--Hunterdon CountyNew Jersey--Hunterdon CountyNew JerseyRutgers University-New Brunswick