Ruins of the Shuixi War in Bainitun

　　Bainitun is Baixing Town in Nayong, named after Bai Ni Po where white clay is found, covering a total area

　　96

　　square kilometers. Surrounded by water on three sides, the Nayong River flows from Yangchang Town

　　(

　　Haizi Yangchang

　　)

　　through Haizuo, Pengjiadu, Kamen, and Jiangjiayan, winding around the town and heading southeast to the junction of Dazhuanwan where the counties of Zhijin, Nayong, and Liuzhi meet, before joining the Chaha River and flowing into the Wu River. The surrounding river valleys are deep and the cliffs are sheer, with only four access routes. In the past, the east, west, and south sides required boat crossings to enter the town, with only the northeast route being accessible by land. It was one of the Eighteen Fortresses established by Tusi Ankun, including

　　(

　　Shuicheng

　　)

　　Azha Fortress

　　(

　　Liuzhi Special District

　　)

　　and others. The land here is fertile and abundant in grain, serving as a key granary for the Shuixi region in earlier times. A granary was built in Yinatianba

　　(

　　Baixing Town

　　)

　　and managed by the Sha clan, a branch of the Twelve Noble Lineages. Due to its strategically perilous terrain, it has historically been a fiercely contested military stronghold. During the Ming Dynasty, Princess Shuexiang of the Sui clan sought refuge here to avoid turmoil, and in the early Qing Dynasty, it was a major battleground of the Shuixi Wars. In the final years of the Republic of China, reactionary military forces, police, secret agents, and special units gathered here in a futile attempt to make a last stand.