National Hydrography Dataset (NHD)

For the conterminous United States, Hawaii, and the U.S. Virgin Islands, medium and high resolution NHD data are available at 1:100,000 and 1:24,000 scale, respectively. NHD data are available for Puerto Rico at 1:20,000 scale, and at 1:63,360 scale in...
The National Hydrography Dataset (NHD) is designed to provide comprehensive coverage of surface water data for the U.S. The NHD includes datasets covering all streams and lakes at scales of 1:24,000 and 1:100,000-scale. In some areas, the NHD is being...