Goseong-ri Mountain Fortress

고성리산성

An old fortress above the river gorge

Address

Goseong-ri, Sindong-eup, Jeongseon

A fortress on 425 m Goseong mountain. When it was built is unclear, and some say it predates Goguryeo. The approach is steep and tiring. From the top you look down on the Dong River flowing through the gorge.