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Red alder trees distribution in the United States Pacific Northwest for 2002 summarized for NHDPlus v2 catchments

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: July 13, 2026 at 06:20 PM | Dataset Last Updated: November 17, 2020 at 12:00 AM
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the basal area of red alder trees within each incremental watershed delineated in the NHDPlus v2 dataset in the Pacific Northwest region of the United States (Hydro Region 17; Major River Basin 7 (MRB7)) in 2001.

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