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The USGS National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating water and transported material flow allows users...
Categories: Data; Tags: Administrative watershed units, Area of Complex Channels, Area to be submerged, Aroostook County, Artificial path, All tags...
The USGS National Hydrography Dataset (NHD) Downloadable Data Collection from The National Map (TNM) is a comprehensive set of digital spatial data that encodes information about naturally occurring and constructed bodies of surface water (lakes, ponds, and reservoirs), paths through which water flows (canals, ditches, streams, and rivers), and related entities such as point features (springs, wells, stream gages, and dams). The information encoded about these features includes classification and other characteristics, delineation, geographic name, position and related measures, a "reach code" through which other information can be related to the NHD, and the direction of water flow. The network of reach codes delineating...
Tags: Administrative watershed units, Area of Complex Channels, Area to be submerged, Artificial path, Basin, All tags...


    map background search result map search result map USGS National Hydrography Dataset (NHD) Downloadable Data Collection USGS National Hydrography Dataset (NHD) Best Resolution for HU8-01010009 20141227 HU-8 Subbasin FileGDB 9.3.1 USGS National Hydrography Dataset (NHD) Best Resolution for HU8-01010009 20141227 HU-8 Subbasin FileGDB 9.3.1 USGS National Hydrography Dataset (NHD) Downloadable Data Collection