Gravity data were obtained from surveys by the Laboratory of Geophysics of the University of Arizona, U.S. Defense Mapping Agency, U.S. Geological Survey, Exxon Corporation, and mining companies and contractors. Lysonki and others, 1980 For the PDF and description http://repository.azgs.az.gov/uri_gin/azgs/dlio/1558
Photographer: Unknown
Photo Date: 1980
Photo Location Accuracy: Approximately Located
Photo Tags: gravity, Bouguer anomaly, geophysics, Arizona