Web Directory by Internet-Web-Directory.com

Internet platform for the exchange of ideas and information about geology, research and exploration in North Africa.

The Oregon Department of Geology and Mineral Industries. News and information about state geology, gems and minerals, earthquakes and other natural hazards, energy resources, cartography, and related topics.

Searchable catalog of paper and digital geologic maps, mostly for the U.S. Maps and related data cover: geology, hazards, earth resources, geophysics, geochemistry, geochronology, paleontology, and marine geology.