Balhae archaeological site in China
Shangjing Longquanfu (Chinese: 上京龍泉府) or Sanggyeong Yongcheonbu (Korean: 상경용천부), also known as Shangjing/Sanggyeong (上京, 상경), Huhan/Holhan Fortress (忽汗城, 홀한성), is an archaeological site in Ning'an, Heilongjiang, China.[1] It was the capital of the Balhae (Bohai) Kingdom from 756 to 785, and again from 793 to 926.[2]
The site is located in about 3 kilometres (1.9 mi) from the modern town of Dongjingcheng (东京城), and the ruined city is also colloquially called "Dongjingcheng". The site has been protected since the 1960s. The Chinese government has established the Bohai Shangjing National Archaeological Park and an archaeological museum at the site.[1]