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Federal
EnviroAtlas - HU12_polygon recent views
U.S. Environmental Protection Agency —
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of... -
University
New Mexico 6th Code Subwatersheds (12-digit) recent views
Earth Data Analysis Center, University of New Mexico —
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the State of New Mexico. This data set consists of... -
Federal
Watershed Boundary Dataset; 12-Digit Watersheds Dissolved to 8-Digit Watersheds recent views
Department of the Interior —
This dataset is the digital hydrologic unit boundary layer for the 8-digit subwatershed boundaries for the conterminous United States. This dataset is intended to be...