Yútái
Yutai is a county on the western side of the lakes of southern Shandong. Its old seat at Huangtai, occupied from 809, was enclosed by earthen walls and a moat crossed by floating bridges. Floods repeatedly threatened the town. After the old city was destroyed by water in 1756, the county seat moved to Dongjiadian; the following year officials began a brick wall around the new city, with four gates protected by outer enclosures.