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Date: 2014-09-29 17:56:30Large igneous provinces Petrology Columbia River Geology Columbia River Basalt Group Earth science Cascade Range Snake River Mount St. Helens Geography of the United States Idaho Interstate 84 | AGI-river-poster44x34_FINALAdd to Reading ListSource URL: www.oregongeology.orgDownload Document from Source WebsiteFile Size: 3,39 MBShare Document on Facebook |