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 Name                           Last modified      Size  
 Parent Directory                                    -   
 coverthb.jpg                   2017-08-07 19:36   56K  
 ofr20171093.pdf                2017-08-07 21:41  1.8M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/2017/1093/
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