Watershed Boundary Dataset
The Watershed Boundary Dataset is used broadly in applications from scientific research to regulatory work. It is a companion dataset to the National Hydrography Dataset (NHD) and a component of the NHDPlus High Resolution (NHDPlus HR).
Federal Standards and Procedures for the National WBD (5th ed, 2022)
![A cover image of the WBD Standards with crediting information and text, displaying a fork in the Penobscot River in Maine](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/info_block/public/media/images/Title%20page%20from%20WBD%20Standards%20TM11-a3%20publication%20v5.jpg?itok=mZl6LSGg)
This document establishes Federal standards and procedures for creating the WBD as seamless and hierarchical hydrologic unit data, based on topographic and hydrologic features at a 1:24,000 scale (Alaska at 1:63,360 and Caribbean at 1:25,000)