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Summary
DescriptionColumbiasloughwatershed.png
English: Map of Columbia Slough watershed in Multnomah County, Oregon, United States. The slough begins in Fairview, Oregon, and flows into the Willamette River at Portland. The symbol P indicates a pumping station.
Date
Source
Taken from U.S. Census website here and modified by User:Finetooth. Watershed boundaries from Portland Bureau of Environmental Services here and Columbia Slough Watershed Council here.
U.S. government work in public domain; my modifications licensed under GFDL, CC-BY-SA-3.0
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{{Information |Description={{en|1=Map of Columbia Slough watershed in Multnomah County, Oregon, United States. The slough begins in Fairview, Oregon, and flows into the Willamette River at Portland.}} |Source=Taken from U.S. Census website [http://factfin