Huangyuan County

Huangyuan County () is a county of Qinghai Province, China, it is under the administration of the prefecture-level city of Xining, the capital of Qinghai. It is under the administration of Xining city. The county seat is Chengguan Town, known in Mongolian as Dan Gar and in Tibetan as Tongkor.
The remains of Ladrolne Gompa and Rali Hermitage may be seen between Haiyan and Tongkor. A branch of Tongkor Monastery, known as Ganden Tengyeling (Ch. Cinghosi), just to the northwest of the Chengguan is also in ruins.