South China Karsts are unique landforms made up of limestone (chalk and calcium carbonate). These karsts are 270 million years old. They spread in about 550,000 km2 area. These rocks are carved naturally as needles. They have caves, underground streams and sinkholes on the surface; steep rocky cliffs that stand tall and emerge vertically. Geologically, these Karsts evolved due to the tectonic uplift of Qinghai-Tibet Plateau.
South China Karst
