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#1 Federal
Umpqua River Oregon Geologic Floodplain
- Organization: Department of the Interior
- Dataset Last Updated: November 17, 2020 at 12:00 AM
The Umpqua River drains 12,103 square kilometers (4,673 square miles) in southwest Oregon before flowing into the Pacific Ocean at Winchester Bay near the city of Reedsport. In cooperation with...
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Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: July 13, 2026 at 06:35 PM

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