煮え渕ポットホール, Natural geological formation in Higashiine, Japan.
The Niebuchi Potholes are a geological formation featuring more than 20 round depressions carved into granite bedrock by water erosion and swirling stones. The hollows vary in size and depth, revealing how flowing water shapes solid rock over extended periods.
The granite formation originated roughly 100 million years ago during the Ryoke granite belt formation in central Japan. The potholes themselves were carved by water erosion over millions of years, creating a rare geological feature.
The potholes received designation as a Natural Monument of Aichi Prefecture, marking the first pothole formation to gain this status.
The site is best visited during dry weather, as rainfall makes the paths slippery and limits views of the formations. A red pedestrian suspension bridge system provides safe paths for observing the potholes from multiple angles.
The red suspension bridges above the formations provide access points that would otherwise be difficult to reach, allowing close views of erosion patterns. Visitors can see how stones of different sizes remain in various basins, indicating where water force was most powerful.
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