Huangyuan County (Chinese: 湟源县) is a county of Qinghai Province, China, it is under the administration of the prefecture-level city of Xining, the capital of Qinghai.

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.

This Qinghai location article is a stub.