Depending on the product type, hydrography data are offered in Esri File Geodatabase 10.1, Shapefile or GeoPackage formats. National Hydrography Dataset (NHD) data is available as national extracts, state extracts, 4-digit sub-regions, 8-digit sub-basins, or in a specified extent from The National Map Downloader. A national extent of medium and high resolution NHD data in File Geodatabase format is also staged here.
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How do I download hydrography data products?
Download USGS hydrography data (datasets representing U.S. surface water for mapping and modeling applications) using The National Map Downloader or using download links that are listed at Access National Hydrography Products. Learn more: The National Map: Hydrography Training Videos National Hydrography Dataset User Guide For streamflow data, see: Where can I get real-time and historical...
How should I cite datasets and services from The National Map?
The USGS does not require a specific format when citing data obtained through The National Map. You should follow the citation guidelines provided by instructors or publication editors as appropriate. The following should help you find the information that you need: Citation for Datasets Author: U.S. Geological Survey Release date: the first four numbers of <pubdate> from dataset metadata for the...
What sources were used to produce the National Hydrography Dataset (NHD)?
The National Hydrography Dataset (NHD) is a combination of USGS hydrologic digital line graph (DLG) files and Environmental Protection Agency (EPA) reach files, version 3.0 (RF3). U.S. Forest Service Cartographic Feature Files (CFF) and USGS Tagged Vector Hydro (TVH) captured from 7.5-minute printed maps were also used. Some states also contributed their own stream layer data to the compilation of...
In what scale are the data in the National Hydrography Dataset (NHD)?
Scales for data in the National Hydrography Dataset: Conterminous United States, Hawaii, and the Virgin Islands, medium resolution - 1:100,000-scale Conterminous United States, Hawaii, and the Virgin Islands, high resolution - 1:24,000-scale Puerto Rico - 1:20,000-scale Alaska - 1:63,360-scale Users are encouraged to work with their state's principal steward to produce and submit data at higher...
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How do I download hydrography data products?
Download USGS hydrography data (datasets representing U.S. surface water for mapping and modeling applications) using The National Map Downloader or using download links that are listed at Access National Hydrography Products. Learn more: The National Map: Hydrography Training Videos National Hydrography Dataset User Guide For streamflow data, see: Where can I get real-time and historical...
How should I cite datasets and services from The National Map?
The USGS does not require a specific format when citing data obtained through The National Map. You should follow the citation guidelines provided by instructors or publication editors as appropriate. The following should help you find the information that you need: Citation for Datasets Author: U.S. Geological Survey Release date: the first four numbers of <pubdate> from dataset metadata for the...
What sources were used to produce the National Hydrography Dataset (NHD)?
The National Hydrography Dataset (NHD) is a combination of USGS hydrologic digital line graph (DLG) files and Environmental Protection Agency (EPA) reach files, version 3.0 (RF3). U.S. Forest Service Cartographic Feature Files (CFF) and USGS Tagged Vector Hydro (TVH) captured from 7.5-minute printed maps were also used. Some states also contributed their own stream layer data to the compilation of...
In what scale are the data in the National Hydrography Dataset (NHD)?
Scales for data in the National Hydrography Dataset: Conterminous United States, Hawaii, and the Virgin Islands, medium resolution - 1:100,000-scale Conterminous United States, Hawaii, and the Virgin Islands, high resolution - 1:24,000-scale Puerto Rico - 1:20,000-scale Alaska - 1:63,360-scale Users are encouraged to work with their state's principal steward to produce and submit data at higher...
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