Louisiana ground-water map no. 13 hydrogeologic and potentiometric surface, October 1996, of the Sparta Aquifer in northern Louisiana / by Jeffrey A. Brantly, Ronald C. Seanor, and Kaycee L. McCoy ; U.S. Department of the Interior, U.S. Geological Survey ; prepared in cooperation with the Louisiana Department of Transportation and Development, Public Works and Water Resources Division, Water Resources Section
Relief shown by contours and spot heights. Title from PDF title screen (viewed on May 6, 2010). Includes text, 2 index maps, 5 diagrams, and 1 table. Data sheet includes 1 index map and 5 colored cross sections.