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Open-File Report 2005–1158
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Helicopter Electromagnetic and Magnetic Survey Data and Maps, Northern Bexar County, Texas

By Bruce D. Smith, Michael J. Cain, Allan K. Clark, David W. Moore, Jason R. Faith, and Patricia L. Hill

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Report Cover Image: Colored apparent resistivity map at 115,000 Hz with highs shown in warmer colors. Photograph (A.K. Clark, 2003) looking south along Salado Creek at Camp Bullis training site. The outcropping rocks compose a biostrome in the upper Glen Rose Limestone (hydrogeologic unit D). The hill in the background is the earthen dam across Salado Creek. The black line shows approximate location of the biostrome on the geophysical map.

Version 1.0

Posted June 2005

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