The Seoseokdae Colonnade (1,050m), located southwest of Cheonwangbong
(1,187m), the highest peak of the Mudeungsan, belongs to the Natural Monument
No. 465 along with Ipseokdae Colonnade (950m). It is the representative site in
Mudeungsan comprising over 200 polygonal stone pillars that are lined up like
folding screens. The columns of the colonnade are about 30m high in average
and 1~2m wide in diameter. The rock that composes the Seoseokdae Colonnade
is a volcanic rock named Mudeungsan Tuff, which was formed by welding of
pyroclastic material in the late Cretaceous about 85 million years ago. During the
slow cooling of the tuff, the volume was reduced by contraction, creating the
vertically developed columnar joints due to the tensile force acting on it.
In this place, as Mudeungsan Mountain has Gwangju, you can see the panoramic
view of the city area and Wolchulsan Mountain in the distance. And the glare of
Seoseokdae at sunset makes this spectacle.
Find out more about Geosites
Rise and fall of a land by repeated freezing and melting
Seoseokdae Colonnade provides a unique scenery,
with the varying heights of the stone pillars
seemingly soaring and singing to the skies, extending
from the bottom part to the observatory to the top
part. This geological featurehas been formed on the
slope of a land that was formed by repeated freezing
and melting under periglacial climate.