Lanzhou is the eighth largest prefecture among the thirteen prefectures of Yue Kingdom, but in terms of wealth, it is only behind Xinzhou and ranked second.It is located in the southern part of Yue Kingdom, with fertile land and countless waterways, lakes and canals within its jurisdiction. In addition, it has always been good weather, so it is very suitable for growing grain rice. It is the leading grain-producing area in the country.Although Jiayuan City, located in the central part of Lanzhou, is not Lanzhou’s capital city, it is the real largest city in Lanzhou.The Grand Canal of the Lu River, which runs through the north and south of the country, passes through the city center, and several other water and land main roads also pass through this place. Therefore, the transportation is extremely developed and can be called a water transport hub and a major commercial road.There are countless merchants and travelers passing by every year, which greatly drives economic and trade activities here, so it is not uncommon for Jiayuan City to become the largest city in the province.