Day 15: Zhongwei, Ningxia to Lanzhou outskirts, Gansu

Distance: 270 km
Expenses: gas 35rmb, hotel 53rmb
Events:

• A large tourist trap with the world's largest sand slide on the way out of Zhongwei.
  
• We rode through the desert in the morning and then over rolling hills and valleys in the afternoon.
  
• Workers were placing hay in the road and sifting it with pitchforks in a process to extract the seeds.
  
• We came upon the set for the movie Myth, an attempted replica of the Mogao Caves. The real thing awaited us in Dunhuang, so we kept on moving.
• Road conditions and the coming nightfall prevented us from an attempt on Lanzhou.