This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level
for the State of North Carolina. This data set consists of geo-referenced digital data and associated attributes
created in accordance with...
The North Carolina Center for Geographic Information and Analysis, in
cooperation with the NC Department of Transportation and United States
Environmental Protection Agency Region IV Wetlands Division,
contracted Earth Satellite Corporation (EarthSat) of ...