Ключевые слова: arizona, bedrock, brown, canyon, cloud, clouds, desert, fog, formation, grand, grand canyon, grand canyon national park, grass, hiking, in, layers, massif, mountain, mountain range, mountains, national park, natural landscape, nature, outcrop, outdoor, plateau, platform, rock, rocks, seasons, sky, slope, snow, south rim, terrain, tonto, trees, valley, weather, wilderness,