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Date: 2009-12-05 22:27:54Historic Columbia River Highway West Coast of the United States Columbia River Basalt Group Latourell Falls Bridal Veil Falls Crown Point Wallula Gap Basalt Columbia River Oregon Columbia River Gorge Geography of the United States | Ore Bin / Oregon Geology magazine / journalAdd to Reading ListSource URL: www.oregongeology.orgDownload Document from Source WebsiteFile Size: 3,97 MBShare Document on Facebook |