U.S. flag

An official website of the United States government

Hydrologic landscape regions of the United States

Hydrologic landscape regions (HLRs) in the United States were delineated by using geographic information system (GIS) tools and statistical methods including principal components and cluster analyses. The GIS and statistical analyses were applied to land-surface form, geologic texture (permeability of the soil and bedrock), and climate variables that describe the physical and climatic setting of 43,931 small (roughly 200 square kilometers) watersheds in the United States. The analyses then grouped the watersheds into 20 noncontiguous regions (the HLRs) on the basis of similarities in land-surface form, geologic texture, and climate characteristics. This hydrologic landscape regions dataset contains for each of the 43,931 watersheds the (1) watershed identification number, (2) land-surface form, geologic texture, and climate characteristics for each watershed, and (3) hydrologic landscape region number for each watershed.

Get Data and Metadata
Author(s) United States Geological orcid
Publication Date 2003-01-01
Beginning Date of Data unknown
Ending Date of Data unknown
Data Contact
David Wolock
DOI https://doi.org/10.5066/P9UIFPKW
Citation Geological, U.S., 2003, Hydrologic landscape regions of the United States: U.S. Geological Survey data release, https://doi.org/10.5066/P9UIFPKW.
Metadata Contact
Water Mission Area
Metadata Date 2020-11-17
Related Publication
Citations of these data No citations of these data are known at this time.
Access public
License http://www.usa.gov/publicdomain/label/1.0/
Harvest Source: ScienceBase
Harvest Date: 2024-08-24T04:55:37.909Z