DLG

This is a Digital Line Graphs (DLG) of the boundaries, hydrography, and transportation layers of Dancyville, TN taken from: http://edc.usgs.gov/images/dlg.gif

DLG's are "digital vector representations of cartographic information. Data files of topographic and planimetric map features are derived from either aerial photographs or from cartographic source materials using manual and automated digitizing methods." http://edc.usgs.gov/guides/dlg.html