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    Chapter 10. MAPPING

    Chapter 10. MAPPING

    You might wonder what taking a long hike out in the middle of nowhere has to do with Perl. Well, I hike for exercise. When I go on a long hike, I like to have a topographical map of where I'm going.

    You can order maps from the United States Geological Survey (USGS), but they take a long time to arrive. However, the USGS has allowed its mapping data to be put online.


      

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