About 1 kilometer before reaching Pha Taem, there are natural stone pillars formed by the erosion of water and wind over millions of years. These pillars resemble a multitude of mushrooms standing side by side. Within the stone, you can find remnants of seashells, gravel, and sand, leading geologists to speculate that this area was once covered by the sea over a million years ago. The local people refer to these mushroom-like stone pillars as “Sao Chaliang,” a term derived from “salang,” which means “stone pillar.” This area also features a nature trail for tourists to explore, but it’s advised to have a guide accompany you on the journey.