Sunday, July 22, 2012

Digital Line Graph (DLG)


A DLG or Digital Line Graph are maps that show roads, utility lines, boundaries, and other cartographic information on a topographic map. The image above is a map showing DLG data of the water systems of Lake Tahoe and the land that surrounds it. You can see how the red lines are used point out the water ways and the boundaries around the lake.  

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