Organization using federal, state, and university resources to monitor and study Alaska's hazardous volcanoes, to predict and record eruptive activity, and to implement public safety measures.

Information about and photos of the Cascades volcanoes, Mount Saint Helens updates, and volcano monitoring and hazards information.

Mainly biological research but during local eruptions it becomes the volcano observatory.

U.S. Geological Survey's comprehensive site about Hawiian Volcanoes.

Provides information on studies of Antarctica's Mt. Erebus, the world's southernmost active volcano.