Ключевые слова: adventure, alien, background, canyon, chinese, cliff, colorful, curve, desert, dry, extraterrestrial, famous, formation, gorgeous, hiking, hill, hot, landform, landscape, layers, mars, mountain, national, natural, nature, orange, outdoors, park, planet, rainbow, red, rock, sand, sandstone, scenic, sky, stone, strip, strips, tourism, trail, travel, unique, unusual, valley, vermillion, view, wilderness, zhangye,