Introduction to Biandu Gorge: The tall and steep Qilian Mountains are split from east to west by a canyon about 30 kilometers long from north to south, forming the famous Biandu Gorge, which was historically called Dadouba Valley.
Introduction to Biandu Gorge: The tall and steep Qilian Mountains are split from east to west by a canyon about 30 kilometers long from north to south, forming the famous Biandu Gorge, which was historically called Dadouba Valley.