Major River Basins

The major river basin lines in NC are drawn based on the nationally recognized hydrologic unit codes (6-digits). Some basins have been split apart due to previously written general statutes. This feature service was uploaded in December 2014. For all inquiries, please contact the DWR GIS Team.北卡罗来纳州（North Carolina，简称NC）内的主要流域界线，均基于全国认可的6位水文单元代码（hydrologic unit codes）绘制。部分流域因既往颁布的通用法规而被拆分。本要素服务（feature service）于2014年12月上线发布。如有任何咨询事宜，请联系DWR GIS工作组（DWR GIS Team）。