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 Name                           Last modified      Size  
 Parent Directory                                    -   
 readme.ps                      1997-04-08 14:30   21K  
 readme.txt                     1997-04-08 14:30  3.3K  
 spgdale.tar.gz                 1997-04-08 14:30   12M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/1997/ofr-97-0093/
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