GADQALL4-CD
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Designed for use with ArcView GIS 3.x and 8.x software products, this CD-ROM set covers all four quadrants of Texas, showing all 38 georeferenced 15-minute GAT (Geologic Atlas of Texas) map Sheet images in .tif format and scanned legend images. It was produced for the Bureau of Economic Geology by John Estepp of the Surface Casing Division Texas Commission on Environmental Quality (TCEQ) in March 2004.
Individual GIS CDs for Texas are available separately, as DQNE, DQNW, DQSE, and DQSW.
Citation:
Estepp, John, 2004, Digital GIS Quadrangles - Texas: The University of Texas at Austin, Bureau of Economic Geology, Digital GIS Quadrangles, Texas.