NHD User Guide
About the NHD
The National Hydrography Dataset (NHD) is the surface water component of The National Map. The NHD is a digital vector dataset used by geographic information systems (GIS). It contains features such as lakes, ponds, streams, rivers, canals, dams and streamgages. These data are designed to be used in general mapping and in the analysis of surface-water systems.
About the NHD User Guide
The NHD User Guide contains Interactive Tutorials and a Feature Catalog to guide users every step of the way when using NHD Data.
User Guide Content coming soon:
Tutorial Module Quizzes
Increased Feature Catalog Content
And Much Much More!