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 Name                           Last modified      Size  
 Parent Directory                                    -   
 coverthb.jpg                   2017-05-17 10:37  8.7K  
 ofr20171053.pdf                2017-05-17 11:42  6.6M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/2017/1053/
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