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#1 State
16-digit HU
- Organization: State of Oregon
- Dataset Last Updated: May 01, 2024
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National representation of HU...
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Search relevance: 169.61 | Views last month: 7 | Catalog Last Checked: October 06, 2026 at 11:15 PM
#2 Federal
Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection
- Organization: Department of the Interior
- Dataset Last Updated: September 07, 2023 at 12:00 AM
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal...
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Search relevance: 49.07 | Views last month: 84 | Catalog Last Checked: November 01, 2026 at 08:39 AM

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