Haiyan County, Qinghai

Haiyan County is a county of Qinghai Province, China, located on the northeast shore of Qinghai Lake. It is under the administration of Haibei Tibetan Autonomous Prefecture.

History
A major nuclear research facility, Plant 221, better known as China's First Research Center for Nuclear Weapons , was established in 1958 at the location called Jinyintan (金银滩) in Haiyan County. The site has been on the List of Major National Historical and Cultural Sites in Qinghai since 2001.

Administrative divisions
Haiyan County is made up of 2 towns, 3 townships, and 1 ethnic township: