In 2023. Road reconstruction project of Lane 1, Lane 2, Lane 3, Lane 4 and Huangnan Road in Xishan, Tongren County, Huangnan Prefecture, Qinghai Province in 2023. Huangnan Tibetan Autonomous Prefecture, the capital of tongren city, is one of the eight prefecture-level administrative regions in Qinghai Province. It is located in the southeast of Qinghai Province and is named after its location south of the Yellow River. The terrain is high in the south and low in the north, belonging to the plateau continental climate. Quanzhou has a total area of 18200 square kilometers, and governs 3 counties 1 city.