Three caused a river or valley rain erosion for thousands of years, causing the hole sizes, both small and large. The combination about 3000 holes. Some hole shape is similar. Animal stars, circles and other pictures.The name is derived from the Sampanbok have holes both large and small, about three thousand holes, and the Bok from Lao language, which means it is the origin of the basin. Sampanbok.
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![](//thimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)