You can search the history of volcanism in the United States in regions or in individual states.
This web site from the Smithsonian Museum of Natural History has information, detailed data, and publications on the worlds volcanoes and volcanic eruptions.
More than 500 terms related to volcanoes and volcanism developed by the U.S. Geological Survey. Some terms have links for further information.
The map is designed to show Earth's most prominent features when viewed from a distance, and more detailed features upon closer inspection.
Detailed descriptions of more than 80 volcano related terms with photographs and links to related information.
Contains original documents and data as well as links. Sections of the library include volcano topics, current volcanic activity, searching for volcanoes, reference sources, geological organizations, departments, observatories, and geologic maps.
Describes how volcanoes work and where they are located.
This website from the U.S. Geological Survey has alerts about currently active volcanoes and links to educational resources and many other aspects of volcanoes.
This site brings together both historical and current information on volcanoes, as well as extensive background material.
A listing of the Earth's active volcanoes by geographic area along with links to additional information.
