Rolling clock mouth, commonly known locally as small mouth, is one of the many mouths of Helan Mountain. The ticket here is only 30 yuan, the scenery is very beautiful, generally the left sightseeing bus to the terminal, then get off the bus and visit slowly! There are many temple buildings, there are many wild rock sheep on the mountain wall, the air is very fresh, it is a great place to relax! It takes about an hour to drive from Yinchuan city!