On January 21, 1963, it was designated Historic Site of South Korea No.

[1][2] It was built during the Three Kingdoms of Korea period, possibly around the mid-7th century.

These investigations found that the fortress had been rebuilt several times over through the Goryeo and Joseon periods.

[2] There is a monument to the Battle of Haengju on the top of the mountain that was constructed in 1603.

The temple Chungjangsa is also on the mountain; it enshrines a portrait of Kwŏn Yul, the Korean general of the battle.