Ключевые слова: adventure, ancient, arid, background, beautiful, blue, canyon, chalk, clay, cliff, desert, dry, eroded, erosion, famous, formation, geology, hill, land, landscape, limestone, mountain, national, nature, net, outdoors, panorama, park, plateau, real, ridge, rock, rugged, sand, sandstone, scenery, scenic, sky, spain, stone, summer, sweep, tourism, travel, valley, view,