Stone Forest Introduction: The red stone forest was once the seabed of the Ordovician period. Later, it was eroded by sea water and rainwater to form a unique karst landform. The red color formed by iron-containing elements has the feeling of Danxia landform. Karst landforms are mostly distributed in Yunnan and Guizhou provinces in my country, and are dominated by gray stone forests. The "red skin" like red stone forests is now the only one in the country.