Wednesday, August 20, 2008

Topographic Map

Topographic Map

This map is from the Library of Cngress and dates back to 1777.
A map depicting terrain relief showing ground elevation, usually through either contour lines or spot elevations. The map represents the horizontal and vertical positions of the features represented. It is a graphic representation delineating natural and man-made features of an area or region in a way that shows their relative positions and elevations.




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