Huayuan town paifang village. According to Baidu map, there is a red zone in Sun Fan Bay, Paifang Village, huayuan town, Xiaochang County, which is the former site of Sun Jiafan Revolution and the birthplace of Hubei Party, government and army. The former site of Sun Jiafan Revolution was built in the late Qing Dynasty, facing south, with brick and wood structure, rectangular plan, three bays, width of13.5m, depth of 36.3m, covering an area of 600 square meters, completely retaining the typical Huizhou architecture in the late Qing Dynasty, which has certain scientific and artistic value.