Geology

• Arizona Geological Survey
  Compiles Arizona geologic information.
  
  
• Arizona Regional Image Archive
  Digital image and map data for the Sonoran desert region.
  
  
• Geology .com
  Geology and Earth Science current events, news, articles, dictionary, satellite images, career information, reference maps, and more.
  
  
• NOAA National Geophysical Data Center
  A National Oceanic and Atmospheric Administration program that collects geophysical data on all aspects of geology including glaciology, marine geology, marine geophysics, solar terrestrial physics, and solid earth geophysics.
  
  
• U.S. Geological Survey - Geography
  The USGS Geography website contains basic cartographic and geographic spatial data of the country including GIS maps, aerial photographs, satellite imagery, digital elevation models, topographic maps, and geographic names information.
  
  
• U.S. Geological Survey - Geology
  The USGS Geology website contains information on natural hazards, energy and mineral resources, and coastal and marine geology.
  
  

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