National Hydrography
Stewardship and Community
The National Hydrography Dataset (NHD), Watershed Boundary Dataset (WBD), and NHDPlus High Resolution (NHDPlus HR) are updated and maintained through a strong community of stewards and users.
Hydrographic Data Community
The Markup Reviewer, used by the USGS and the NHD state stewards to review suggested edits, is available for download at the USGS Hydrographic Data Community (HDC).
Explore HDCStewardship Contacts Map
Click an area on this map or visit the links to the right for contact information for NHD and WBD stewards, USGS POCs, and USGS National Map Liaisons in your area.
Visit MapJust as building the NHD and WBD required a large partnerships across the nation, maintaining the NHD and WBD also requires extensive partnerships and can best be accomplished by those closest to the hydrography. Users within the states and Federal lands understand the hydrography around them and are motivated to ensure the accuracy of the NHD to meet their business needs. The USGS facilitates the overall stewardship process, providing national management, coordination, tools, standards, documentation, training, quality assurance, data archival, and data distribution, and stewards provide local hydrographic knowledge through data editing and updates. Edits and updates to the NHD are made by stewards and processed and made available in the national dataset distribution by the USGS.
Related Content
UE Hydrography Focus Area
The National Geospatial Program manages the National Hydrography Dataset, Watershed Boundary Dataset, and NHDPlus High Resolution. These geospatial datasets represent the surface water of the United States for mapping and modeling applications.
NHD/ WBD Stewardship Support Regions
NHD/WBD Stewardship Support State Coverage Map, broken down by region:
- Western Region indicated in blue - Bill Smith
- South Central Region indicated in peach - Joel Skalet
- North Central Region indicated in green - Joel Skalet
- Southeast Region indicated in pink - Joel Skalet
- Northeast Region indicated in yellow - Tatyana
The National Map hydrography data stewardship: what is it and why is it important?
The National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD) were designed and populated by a large consortium of agencies involved in hydrography across the United States. The effort was led by the U.S. Geological Survey (USGS), the U.S. Environmental Protection Agency (EPA), and the Natural Resources Conservation Service (NRCS)....
Arnold, Dave