Hakseong Fortress is located on Hakseongsan along the border of Shinchang-myeon and Seonchang-myeon in Asan-shi, Chungcheongnam-do. It has been classified on 17 May 1984 as Cultural Assets Material No. 244. A large part of the wall is down, only the southeastern part is still in good shape. The castle is about 500 meters across.
- Address: San 65 Eupnae-ri, Shinchang-myeon, Asan-shi, Chungcheongnam-do.