What time does the bus to Qingyang North Grottoes in Gansu leave?

I got on the bus on the spot. Take bus No.7 from high-speed railway station, Qingyang to Bajiazui Road. There is a shuttle bus from Xifeng, Qingyang to Zhenyuan next to that gas station, which takes about 40 minutes. In fact, the shuttle bus also passes through high-speed railway station, Qingyang and high-speed railway station Square, but it may not be able to get on when it is full, so it is more practical to go to Bajiazui. Don't worry about the return trip. You can also wait for the bus from Zhenyuan by the roadside, or stop a private car. Generally, it takes 15 yuan to take you back to Qingyang city from the North Cave Temple. ?