1. Louisiana ground-water map no. 4 : potentiometric surface, 1989, and water-level changes, 1984-89, of the Jasper aquifer system in west-central Louisiana Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 1992 Format: Map Access & Availability: Loading
2. Louisiana ground-water map no. 5 : potentiometric surface, 1990, and water-level changes, 1974-90, of the Evangeline Equivalent/southeast Louisiana Aquifer System Publication/Creation: Washington, D.C. : U.S. Department of the Interior, U.S. Geological Survey, 1992 Format: Map Access & Availability: Loading