Bingling Si caves are located outside Lanzhou and are well preserved examples of Buddhist cave art. The caves are situated beside the Liujiaxia Reservoir on the Yellow River and the journey from Lanzhou requires approximately a 2 hour road journey and a 2 hour ferry journey each way. The inaccessibility of the caves has protected them somewhat from the pillaging that similar caves have suffered.
The caves and grottoes are carved into the side of Xiaojishi Mountain and were built between the 5th and 19th centuries. Most of the caves were built during the Tang dynasty (618-907AD). There are almost 200 caves and niches featuring murals, 694 stone statues and 82 clay figures.