Ключевые слова: aerial, arid, arizona, beautiful, breathtaking, canyon, cliff, colorful, depth, desert, earth, environment, erosion, expanse, formation, geology, grand, hiking, horizon, iconic, landscape, majestic, national, natural, nature, orange, outdoor, panorama, park, plateau, point, red, river, rock, rocks, sandstone, scenery, scenic, southwest, states, summit, terrain, tourism, travel, united, valley, view, vista, wilderness,