Four lines. According to the website of Hunan Provincial Department of Natural Resources in official website, according to the national requirements, Hunan Province has organized and compiled the Land Spatial Planning of Hunan Province (202 1-2035). Dongan County is located in the southwest of Hunan Province, the northwest edge of Yongzhou City, the upper reaches of Xiangjiang River, the Lengshuitan District in the east, Lingling District in the southeast, quanzhou county in the southwest, Xinning County in the west, Shaoyang County and Yongzhou City in the northwest.