Supung Lake(수풍저수지) is an artificial reservoir on the border between North Korea and China.

[1] On 19 December 1972, North Korea and China signed a protocol for the Joint Protection/Proliferation and Use of Fishery Resources (8 articles) regarding the management of the Supung Lake.

There is supposedly a tunnel directly connecting the chalet and inland China.

[3] The South-Korean writer Ko Un wrote a poem about a man who chip away the Supung Dam for decades to " resuscitate the old (Yalu) river".

The dam eventually breaks and the water is drained out of the lake, revealing the ancient tombs of the Koguryo and Palhae periods.