Xiaoliancheng, also known as Jiangshan Fortress, is located in Binqiao Township, Longzhou County, 3 kilometers away from Longzhou Town. Its mountains are long, with a maximum altitude of 310 meters and an area of 14 square kilometers. In 1886, Guangxu Qing Dynasty was built by Su Yuanchun, a famous general of the Anti-French War, a governor of Guangxi Province, and a flood supervision office, to resist the invasion of the French army. He was also the command center and supervisor of Guiyue's thousand-mile frontier defense line. Fifteen fortresses were built according to the mountain situation, equipped with German Kruber artillery and guarding the water and land portal of Longzhou. It is an important national defense fortress, known as the Great Wall of Southern Xinjiang.