Ключевые слова: blue sky, canyon, color danxia, curve, danxia, danxia landform, danxia longzhou, environment, extreme terrain, geological, geological park, geological wonders, gravel, gully, hill, jingbian wave valley, landforms, lines, mount danxia, mountain valley, natural, natural scenery, red danxia, red sandstone, red stone hilly, rock, sand grains, sands and hilly, sandstone, scenery, spectacular, terrain, texture, the loess plateau, wave shape, wave valley, weathered, white clouds, wonder,