Skip to main content
U.S. flag

An official website of the United States government

Return to search results

BLM OR Hydrography Area Polygon Hub

Published by Bureau of Land Management | Department of the Interior | Catalog Last Checked: May 07, 2026 at 04:23 PM | Dataset Last Updated: May 06, 2026 at 04:03 PM
HYD_AREA_POLY: This dataset contains area features from the US Geologic Survey (USGS) High Resolution National Hydrography Dataset (NHD). NHD Flowline features are linear depictions of streams and centerlines of rivers. Additional attributes have been added from the Bureau of Land Management (BLM) hydrography event data. This dataset will be refreshed as-needed to reflect updates to the NHD and Bureau of Land Management (BLM) hydrography event data.

Resources

12 resources available

Find Related Datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov