A virtual atlas from an ore-petrologist studying the Central Wales polymetallic vein mineralisation.

About the geology of the North America deserts, including the formations, rocks, gems and minerals found there.

The broad objective is to build up a detailed knowledge of the Early Cretaceous stratigraphy in the Tethyan realm. The approach will be systematic through the integration of basin reference sections, basin or platform control sections, biostratigraphic data, and sequence stratigraphy.

Pictures and descriptions of geology field trips to various places around the United States.

Louis Maher's air photos of landforms and geologic features of several parts of the U.S., taken from a small aircraft in 1966.

Three-dimensional geologic tour of the Grand Canyon with computer generated aerial pictures every 4 miles for the entire canyon used to illustrate the geologic narrative.

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.