1. Louisiana ground-water map no. 13 : hydrogeologic and potentiometric surface, October 1996, of the Sparta Aquifer in northern Louisiana Author/Creator: Brantly, Jeffrey A. Publication/Creation: Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 2002 Resource Type: Map Access & Availability: Loading
2. Louisiana ground-water map no. 14 : potentiometric surface, January 2001, and water-level changes, June 2000 to January 2001, of the Chicot Aquifer system in southwestern Louisiana Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.] : U.S. Dept. of the interior, U.S. Geological Survey, 2002 Resource Type: Map Access & Availability: Loading