Skip to main content

USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20220909) FileGDB

Dates

Publication Date
Start Date
2022-09-09
End Date
2022-09-09
File Modification Date
2022-09-10 00:15:50

Citation

U.S. Geological Survey (USGS), 20220909, USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20220909) FileGDB: U.S. Geological Survey (USGS).

Summary

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) for the entire [...]

Contacts

Attached Files

Purpose

The intent of defining Hydrologic Units (HU) within the Watershed Boundary Dataset is to establish a base-line drainage boundary framework, accounting for all land and surface areas. Hydrologic units are intended to be used as a tool for water-resource management and planning activities particularly for site-specific and localized studies requiring a level of detail provided by large-scale map information. The WBD complements the National Hydrography Dataset (NHD) and supports numerous programmatic missions and activities including: watershed management, rehabilitation and enhancement, aquatic species conservation strategies, flood plain management and flood prevention, water-quality initiatives and programs, dam safety programs, fire assessment and management, resource inventory and assessment, water data analysis and water census.
Thumbnail JPG image
Thumbnail JPG image

Map

Communities

  • National Geospatial Program
  • The National Map

Tags

Theme
Place

Provenance

Data source
PRISM

Additional Information

Identifiers

Type Scheme Key
uuid inventory 2a8d3b51-991c-fc8c-a9f2-eba93700e173

Item Actions

View Item as ...

Save Item as ...

View Item...