Website
NHD Data Dictionary
Descriptions of attributes of NHD Feature Classes, Feature Domains, Reachcode Tables, Metadata Tables, Flowline value Added Attributes (VAA) Table, and Miscellaneous Tables
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Resource details
| Format | Website |
|---|---|
| Last updated | Sep 4, 2026 |
| Part of | National Hydrography Data - NHD and 3DHP |
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- Hydrography Data Stewardship: Transitioning to the 3D Hydrography Program
- Elevation-Derived Hydrography Challenges and Solutions, July 2023
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