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Date: 2004-03-31 14:39:49Cratons Geology of North America Proterozoic Geology of the United States Wyoming craton Trans-Hudson orogeny Superior craton Cheyenne belt Great Falls Tectonic Zone Geology Plate tectonics Historical geology | U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY SCIENTIFIC INVESTIGATIONS MAP 2829Add to Reading ListSource URL: pubs.usgs.govDownload Document from Source WebsiteFile Size: 62,77 KBShare Document on Facebook |