1. Potentiometric surface and water-level difference maps of selected confined aquifers in Southern Maryland and Maryland's eastern shore, 1975 ... Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
2. Potentiometric surface of the upper Floridan Aquifer, west-central Florida, May 2005 Author/Creator: Ortiz, A. G. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2006 Resource Type: Map Access & Availability: Loading
3. Potentiometric surface of the upper Floridan Aquifer, west-central Florida, May 2006 Author/Creator: Ortiz, A. G. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2007 Resource Type: Map Access & Availability: Loading
4. Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2005 Author/Creator: Ortiz, A. G. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2006 Resource Type: Map Access & Availability: Loading
5. Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2006 Author/Creator: Ortiz, A. G. Publication/Creation: Denver, CO : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Map Access & Availability: Loading