DLG Map

http://www.dnr.sc.gov/GIS/descdlg.html

The DLG map is a digital line graph that shows features in the vector form rather tan raster format. That means that data is coded in points, lines and polygons. They are generally used in three scales, large intermediate and small, and obtains information from the USGS. This DLG is a digital image in Beaufort, South Carolina