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![]() Date: 1999-10-06 12:00:13Colorado Plateau Grand Canyon Geology of the Grand Canyon area Great Unconformity Unconformity Coconino Sandstone Kaibab Limestone North Kaibab Trail Bryce Canyon National Park Geography of the United States Geography of Arizona Western United States | Source URL: www2.nature.nps.govDownload Document from Source WebsiteFile Size: 1,44 MBShare Document on Facebook |