This fortress was completed in 1675, the first year of the reign of King Sukjong (1674-1720) of the Joseon Kingdom. It was intended that in time of war or other emergency, the portrait of King Taejo enshrined in Gyeonggijeon Hall and the spirit tablet of the Yi Clan founder, kept at Jogyeongmyo Shrine, both in Jeonju, would be brought to the fortress for safekeeping. In fact, they were brought to the safety of the fortress when Jeonju was occupied by the Donghak peasant army in 1894. The original wall was 4m to 5m high, 3m wide and 16km long and had three main gates (East, West, and North) and eight smaller ones. Of the three covered gates of the fortress, only the stone archway of the west gate remains together with part of the stone wall. Inside the fortress are Wibongsa Temple and Wibong Falls, one of the 8 Beauties of Jeonju.