Located in the central city of Yong Zheng (state) Wing (City) road line, Relevant Problems in the west village shop Zheng, Ling Hu Chong Hou east, stretching 45 km, was mound-shaped, 0.5 to 2 meters above the ground, ranging from . Sui Dynasty (605) opened the economic channel, are two sides embankment planting peach, willow, for the Emperor Yang Guang Yang south to enjoy on the trip by boat. Northern Song Dynasty, said near the river, not after the river silt, embankment site still. This is the obvious site for some banks. Old "Yan Liu Tai Sui" is one of the eight permanent city.