Gyubong Colonnade, situated 850m above sea level, is one of the three
spectacular colonnades as with Seoseokdae and Ipseokdae in the Mudeungsan.
It is designated as the Cultural Heritage Site No. 114, along with Jigong Talus
Slope, located to the northwest. The colonnade is centered around the
Gyubongam temple. Its height is about 30 ~ 40m, and its maximum diameter
is about 7m, which makes this colonnade one of the largest column-holding
colonnade in the world. The colonnade forming rock is composed of a volcanic
rock called Mudeungsan Tuff.
Find out more about Geosites
The world’s largest colonnade, the miraculous Gwangseokdae Colonnade
It is estimated that the large columnar joints in
Gwangseokdae were formed by slowly cooling and
forming tuff located at the base of the volcanic ash
deposition layer, and then exposed to the surface