Ключевые слова: abstract, america, antelope, arid, background, canyon, cave, cavern, colorful, desert, ecosystem, environment, erosion, famous, geological, geology, landmark, landscape, light, lower, mystery, natural, nature, navajo, orange, outdoors, page, pattern, red, rock, sand, sandstone, scenery, scenic, shadow, sights, sightseeing, stone, sunbeam, tourism, travel, upper, usa, vacation, wall, wild, wilderness, world locations, world travel,