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 extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level)...
Tags: 10-digit,
12-digit,
14-digit,
16-digit,
2-digit, All tags...
4-digit,
6-digit,
8-digit,
Basin,
FileGDB 10.1,
HUC,
Hydrologic Unit Code,
Hydrologic Units,
National Watershed Boundary Dataset (WBD),
Region,
State,
Sub-basin,
Sub-region,
Subwatershed,
US,
United States,
WBD,
Watershed,
Watershed Boundary Dataset,
inlandWaters, Fewer tags
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