Revision History for USGS Data Series 521

  Jon J. Major, Kurt R. Spicer, and Rebecca A. Collins

  Time-Lapse Imagery of the Breaching of Marmot Dam, 
  Oregon, and Subsequent Erosion of Sediment by the Sandy 
  River--October 2007 to May 2008

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  Posted online at http://pubs.usgs.gov/ds/521/
  December 17, 2010

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