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#1 Federal
Network attributes for the High Resolution National Hydrography Dataset (NHD) based initial 3D Hydrography Program Network
- Organization: Department of the Interior
- Dataset Last Updated: May 20, 2025 at 12:00 AM
This dataset contains the initial 3D Hydrography Program (3DHP) flow network topology, which is based on the final High Resolution National Hydrography Dataset (NHD), and a set of mainstem river...
- xml
- xml
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:03 AM

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