DMOZ - Science: Earth Sciences: Geology

American Geological Institute resources for teachers and students. Includes searchable database of earth images, geologic time scale, and interactive features.

Evolving Earth Foundation

Earth science and natural science resources, articles and online education.

Geography Site: Physical Geography

Illustrated descriptions and explanations of earthquakes, plate tectonics, glaciers and glacial landforms, and volcanoes and volcanic deposits, intended for students up to age 16, but suitable for a wider audience.

Geological Society

General geology portal site, including links, products, and a discussion forum for professionals and students.

Geoscapes Photography

Geologic and natural history landscape photography of the western United States and Pacific islands.

GeoSmitty's Geology and Outdoor Pages

Information about geology, geocaching and other outdoor adventures.

Pangaea

An information system aimed at archiving, publishing and distributing data from global change research with special emphasis on geological, marine and environmental sciences.

Strata: William Smith on the Web

Publications of the father of modern geology, who first drew a chart of the strata under the surface of the earth. Printable version of Smith's famous geologic map of England.

Walter Geology Library

Listing of virtual and on-line geologic field trip guidebooks.