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Database for Potential Hazards from Future Volcanic Eruptions in California

By Melissa N. White, David W. Ramsey, and C. Dan Miller

Data Series 661 (Database for Bulletin 1847)
U.S. Geological Survey


[Mount Shasta as viewed from Little Mount Hoffman.  (USGS photograph by David W. Ramsey.)]
Mount Shasta as viewed looking southwest from Little Mount Hoffman on the upper west flank of Medicine Lake volcano in northern California. The Late Holocene rhyolite lava flows of Little Glass Mountain are visible in the foreground. Beyond the flows is Pumice Stone Mountain, a cinder cone that is well covered by white rhyolitic tephra erupted from Little Glass Mountain around 1,000 years ago.(USGS photograph by David W. Ramsey.)





Suggested citation and version history

U.S. Department of the Interior
KEN SALAZAR, Secretary

U.S. Geological Survey
Marcia K. McNutt, Director

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