1. Altitude, depth, and thickness of the Galena-Platteville bedrock unit in the subcrop area of Illinois and Wisconsin Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2000 Resource Type: Map Access & Availability: Loading
2. Analysis of regional aquifers in the central Midwest of the United States in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming : summary Publication/Creation: [Washington] : [U.S. G.P.O.] ; [Denver, CO :] : [For sale by U.S. Geological Survey, Information Services], [1996] Resource Type: Book Access & Availability: Loading
3. Analysis of regional aquifers in the central Midwest of the United States in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming : summary Author/Creator: Jorgensen, Donald G., author Publication/Creation: [Washington, D.C.] : U.S. Geological Survey, [1996] Resource Type: Book Access & Availability: Loading