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 Name                           Last modified      Size  
 Parent Directory                                    -   
 coverthb.jpg                   2017-07-25 14:18   42K  
 ofr.20171084.pdf               2017-07-27 14:45  2.1M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/2017/1084/
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