Ключевые слова: abrupt, america, american, arid, aridity, arizona, canyon, cliff, desert, environment, erosion, famous, fog, foggy, grand, heights, hill, landmark, landscape, lookouts, mist, misty, mount, mountain, national, nature, outdoor, outside, panorama, park, resort, rim, river, rock, route, routes, sandstone, scenic, sightseeing, south, steep, stone, sunrise, sunset, tourism, tourist, tower, travel, usa, vacation,