DLG Map

DLG maps or Digital Line maps use digitally applied vectors to display cartographic information. Most of these maps use aerial photos of topographic features then use digital line enhancements to better display geographical features. These maps are useful in land surveying among many others. The map below displays Athens, Georgia by using the vectors one can clearly distinguish between the man-made and the geographical elements of Athens.



http://ga.water.usgs.gov/olympics/athens.dlg.gif