Grand Canyon. Colorado River

 Urugwaj > Arizona > Coconino County > North Rim

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The Sign Reads: "As Morning Light Filters Into The Grand Canyon Near Nankoweap Creek, Shadows Fade from the North Rim. The Colorado River Continues to Carve The Sandstone Walls Sunlight Striking Iron Oxides in Them Produces The Canyon's Blazing Colors." Signature in the source: "As the morning light penetrates the Grand Canyon in the Nankovip Ruch area, the shadows from the North Rome disappear. The Colorado River continues to crush the sandstone of walls, where iron oxides under the action of sunlight paint the canyon in bright colors."