Tuesday, July 24, 2012

DLG Map

                                  http://landcover.usgs.gov/urban/umap/pubs/asprs_jt/jt_fig3.gif

This type of map is also from a geological survey map which is called a digital line graph. This includes areas of transportation, hydrography and public land boundaries. This DLG map above shows roadways over lined in blue around the surrounding areas.

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