History of Haibei

Haibei Tibetan Autonomous Prefecture is an autonomous prefecture of northeastern Qinghai province, China. The prefecture has an area of 39,354 square kilometres (15,195 sq mi) and its seat is Haiyan County. Its name literally means “north of (Qinghai) Lake.”

Source From: https://en.wikipedia.org/wiki/Haibei_Tibetan_Autonomous_Prefecture