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EnviroAtlas - 2019 Land Cover Proportions by 12-digit HUC for the Conterminous United States

Published by U.S. EPA Office of Research and Development (ORD) - Center for Public Health and Environmental Assessment (CPHEA) | U.S. Environmental Protection Agency | Catalog Last Checked: May 06, 2026 at 12:08 AM | Dataset Last Updated: November 16, 2021 at 12:00 AM
This EnviroAtlas dataset represents the percentage of land area that is classified as natural, forest, wetland, agricultural, and developed land cover using the 2019 National Land Cover Dataset (NLCD) for each 12-digit hydrologic unit code (HUC) in the conterminous United States. Datasets for other geographies were produced separately; metadata for these related datasets may be found here: Alaska https://enviroatlas.epa.gov/enviroatlas/MetadataFGDC/LandCover_AK.xml, Hawaii https://enviroatlas.epa.gov/enviroatlas/MetadataFGDC/LandCover_HI.xml, Puerto Rico and the U.S. Virgin Islands https://enviroatlas.epa.gov/enviroatlas/MetadataFGDC/LandCover_PRVI.xml. This dataset was produced the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).

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