In Xuanhan County, Dazhou City, there is a natural "unprocessed jade": the Bashan Grand Canyon.The natural scenery is beautiful and villages scatter around the mountains and lakes.

One hour of drive away from the Xuanhan County, Bashan Grand Canyon has been famous for its steepness, spectacularity and seclusion.

The karst landform brings about the unique scenery of Bashan Grand Canyon. Apart from the amazing stones, there're over 1000 caves in the Bashan Grand Canyon including a wind channel of over 200 meters in diameter.

There're various stalactites in the caves. The surface water in the mountains flows and permeates into the caves, producing large amounts of calcium carbonate which crystalize and deposit with proper landform and temperature, creating "calcified stage" in the caves.