Catering. Baidu map data shows that Dingxi Shuiwan used to be a restaurant. Dingxi Shuiwan has a history of more than 2300 years since Longxi County was established in the Warring States Qin Dynasty. It is an important birthplace of the Yellow River civilization of the Chinese nation. Dingxi is known as "the gateway of Lanzhou and the throat of Gansu", and its geographical environment and historical and cultural precipitation make it one of the important towns on the ancient Silk Road.