EPA StreamCat

<p><strong>Open the Data Resource:</strong> <a target='_blank' href='https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset' rel='nofollow ugc noopener noreferrer'>https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset</a></p><p>The StreamCat Dataset provides nationally consistent, catchment‑level landscape and watershed metrics linked to the NHDPlusV2 stream network across the conterminous United States. It includes hundreds of variables describing land cover, soils, geology, climate, hydrology, and human disturbance for both local catchments and full upstream watersheds. These pre‑computed attributes support large‑scale water‑quality assessment, ecological modeling, and national aquatic resource surveys by enabling users to rapidly characterize environmental conditions influencing streams and rivers without requiring specialized GIS processing.</p>