Ключевые слова: ancient, arid, asia, cave, chimney, clay, cones, conical, conservation, dry, erosion, formation, geological, geology, ground, hill, history, lalu, land, landscape, limestone, loss, mount, mountain, nature, old, phrae, pillar, rain, red, rock, runoff, sandstone, scene, sky, soil, stone, terrain, thai, thailand, tourism, travel, trekking, trip, valley, view, water, weathering,