Ключевые слова: asean, asia, blue, canyon, cliff, cloud, county, desert, east, erosion, excursion, famous, formation, geological, geology, history, interesting, landscape, mountain, mushroom, mushroom stone, national park, natural, nature, old, park, phu pha thoep, rare, red, rock, sand, sandstone, scenic, seldom, sky, slope, stone, sunlight, thai, thailand, tourism, travel, tree, vacation, valley,