The Karsts of China
A group of climbers explore Chinas great karst formations in search of scientific evidence of how the 240 million year old limestone formations were created. National Geographic story to fol... Read allA group of climbers explore Chinas great karst formations in search of scientific evidence of how the 240 million year old limestone formations were created. National Geographic story to follow.A group of climbers explore Chinas great karst formations in search of scientific evidence of how the 240 million year old limestone formations were created. National Geographic story to follow.