1. Hydrogeologic terranes and potential yield of water to wells in the Valley and Ridge Physiographic Province in Maryland, New Jersey, and Pennsylvania Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : The Survey, 1996 Resource Type: Map Access & Availability: Loading
2. Hydrogeology and hydrogeologic terranes of the Blue Ridge and Piedmont physiographic provinces in the eastern United States Author/Creator: Geological Survey (U.S.) Publication/Creation: [Denver, CO] : [For sale by Information Services]. Resource Type: Map Access & Availability: Loading