Ключевые слова: aerial, altitude, arid, arizona, awe, beautiful, beauty, blue, brown, canyon, crater, desert, dry, edge, elevation, environment, geology, green, high, hiking, hill, landscape, majestic, meteor, mountain, mountains, national, nature, no people, outdoors, panoramic, picturesque, remote, ridge, rim, rock, rocks, rough, rugged, sand, scenic, sky, southwest, springtime, stone, summer, travel, valley, view, vista,