This dataset includes subwatersheds (12-digit HU) that are contained by a subbasin that overlaps the 16-county NCTCOG region. This dataset consists of geo-referenced digital data and associated attrib
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
Polygon data published by the Watershed Boundary Dataset (WBD) to identify official delineations for Hydrologic Unit 12 (HU12) subwatersheds. Dataset includes all subwatersheds which are contained in
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 boundaries fr
