Helicopter electromagnetic and magnetic survey data and maps, northern Bexar County, Texas

Online link http://pubs.usgs.gov/of/2005/1158/
Description Grids, images, and flight-line paths for magnetic and resistivity surveys
Originators Smith, Bruce D.; Cain, Michael J.; Clark, Allan K.; Moore, David W.; Faith, Jason R.; and Hill, Patricia L.
Publication U.S. Geological Survey Open-File Report 2005-1158

States or counties