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#1 Federal
Crosswalk of Waterbody Identifiers between National Hydrography Dataset Plus High Resolution, National Hydrography Dataset Plus V2, and Hydrolakes Datasets for the Contiguous United States
- Organization: Department of the Interior
- Dataset Last Updated: February 26, 2026 at 12:00 AM
There are multiple systems for mapping waterbodies within the conterminous United States. Prominent among them are the "High Resolution" and "Version 2" editions of the National Hydrography...
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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 10:08 PM

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