Yanggu County, Gangwon

administrative division of South Korea

Daeamsan () is a mountain in Gangwon Province, South Korea. It sits on the boundary between the counties of Inje and Yanggu. Daeamsan has an elevation of .

Haean is a township (myeon) in Yanggu County, Gangwon-do, South Korea. Haean sits in the distinctive Haean Basin (해안분지), which was nicknamed The Punchbowl by UN forces during the Korean War. The northern part of the basin lies within the Demilitarized Zone, and the area saw heavy fighting during the war.