Columnar Joint Along Jungmun and Daepo Coasts, Jeju

Basic information

Designation

Natural Monument No.443

Category

자연지형

Designated year

2005

Location

서귀포시, 제주특별자치도— 제주 서귀포시 중문동 2663-1번지 등

Coordinates

33.238051, 126.426250

Columnar Joint can be found along a 3.5km stretch of the Jungmun and Daepo Coasts, Jeju. The surface of the volcanic rock is rough with clinkers, but the mid-section of the lava units, exposed through erosion, forms a beautiful line of points like a landscape painting. In terms of size, the bigger points are up to 20m high; from top to bottom, they are clean and varied in shape. Found along eroded sea cliffs, they are mostly upright, although some are horizontal. Their upper sections are square or hexagonal. Due to erosion, the exterior is well-exposed; since they are close together, they look like an elaborate work of sculpture. The Columnar Joint along Jungmun and Daepo Coasts, Jeju is important geological features enabling the study and observation of the results of basalt lava hardening and later development of the coastal topography through erosion. Therefore, this area is valuable for academic purposes and for its spectacular scenery.

Location