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Pothole is a geographical feature commonly seen in the upper reaches of the river. The rainfall increases the amount of river flow, which carries the stones in the upper reaches to the lower reaches. The small stones blocked by the recessions of the rocks on the river bed are spun by the flow and wear the rock, thus forming a circular cavity known as pothole.

Luotian pothole landform

Ministry of Land and Resources P.R. ChinaDepartment of Land and Resources of Hubei ProvincePeople’s Government of HuanggangHuanggang Municipal Bureau of Land and ResourcesGlobal Geoparks NetworkNational Geopark of China The Geological Museum of ChinaHong Kong UNESCO Global GeoparkShennongjia Global GeoparkTianzhushan Global Geopark

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