List of links to electronic USGS products and publications and/or information on obtaining products in paper or other formats arranged by discipline, media type, and online products, and links to USGS libraries.
Overview of volcano hazards in California with links to monitoring data including earthquakes and deformations, long-term outlook, volcano hazards in the area, USGS response plan, image gallery, monitoring and topical studies, publications and references.
Archive of feature stories on volcanic features on the Big Island, guided tours of Hawaii Volcanoes National Park, eruptions and eventful earthquakes, and other topics about the work of scientists at the Hawaiian Volcano Observatory.
Links to studies at the Amargosa Desert Research Site by the USGS Toxic Substances Hydrology Program studying the subsurface migration and fate of contaminants in arid environments. Links to news, remediation, photos, bibliography and techniques.
USGS water resources home page for California with links to detailed hydrologic studies and real-time data on streamflow, ground and surface water, and water quality, plus links to online reports, current issues, data archives and image archive.