1. Generalized potentiometric surface, estimated depth to water, and estimated saturated thickness of the High Plains aquifer system, March-June 2009, Laramie County, Wyoming Author/Creator: Bartos, Timothy T., compiler, author Publication/Creation: [Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2011 Resource Type: Map Access & Availability: Loading
2. Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within northern Bexar and Comal counties, Texas Author/Creator: Clark, Allan K., cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2017 Resource Type: Map Access & Availability: Loading