US Geological Survey
As an unbiased, multidisciplinary science organization, the U.S. Geological Survey (USGS) is dedicated to the timely, relevant, and impartial study of the landscape, our natural resources, and the natural hazards that threaten us. Visit us at www.usgs.gov and follow us on social media at http://www.usgs.gov/socialmedia/ http://www.usgs.gov
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