Yangguan West Street, Dunhuang City, Jiuquan City, Gansu Province. According to Baidu map, the street in Dunhuang Seven Towns refers to Yangguan West Street in Dunhuang City, Jiuquan City, Gansu Province, which is a food street. Dunhuang, a county-level city in Gansu Province, is hosted by Jiuquan City and located at the westernmost end of Hexi Corridor, where Gansu, Qinghai and Xinjiang provinces (regions) meet.