1. Thickness of the Mississippi River Valley alluvial aquifer in eastern Arkansas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Little Rock, Arkansas : U.S. Department of the Interior, U.S. Geological Survey, 1997 Resource Type: Map Access & Availability: Loading
2. Thickness of the Mississippi River Valley confining unit, eastern Arkansas Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Little Rock, Arkansas : U.S. Department of the Interior, U.S. Geological Survey, 1993, 1994 Resource Type: Map Access & Availability: Loading