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![]() Date: 2009-12-09 02:33:06Portland metropolitan area Willamette Valley Willamette River Lake Oswego Oregon Tualatin River Oswego New York West Linn Oregon Oswego Canal Clackamas County Oregon Geography of the United States Geography of New York Oregon | Source URL: wdr.water.usgs.govDownload Document from Source WebsiteFile Size: 66,24 KBShare Document on Facebook |