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#1 Federal
Generalized boundaries of the National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 2001-2012
- Organization: Department of the Interior
- Dataset Last Updated: November 17, 2020 at 12:00 AM
This is a GENERALIZED version of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous...
- xml
- xml
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:48 AM

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