Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Zhangye (82% of total searches to Gansu). The next most popular destinations are Baiyin (9%) and Lanzhou (6%). Searches for hotels in Jiayuguan (3%) are also popular.
KAYAK users have found double rooms in Gansu for as cheap as £7 (Zhangye) in the last 3 days. The average price is £27.