English: Map of Fanno Creek watershed in Multnomah County, Washington County, and Clackamas County, Oregon, United States. The creek begins in Portland, Oregon, and flows into the Tualatin River at Durham.
Date
Source
Taken from U.S. Census website here and modified by User:Finetooth. Watershed boundaries from Portland Bureau of Environmental Services here and Exploring the Tualatin River Basin by the Tualatin Riverkeepers, published by Oregon State University Press, Corvallis, Ore. (2002), ISBN0-87071-540-2.
U.S. government work in public domain; my modifications licensed under GFDL, CC-BY-SA-3.0
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one, with minor variation in scale text
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