During the latter half of Joseon Period, the best landscape painter was Jeong Seon (1676∼1759) who discarded Chinese styles and created unique new themes based on Korean scenes. Jeong Seon was particularly fond of Mt. Inwangsan, a scenic peak around Seoul, from which he produced a great masterpiece (138.2 cm X 79.2 cm).
After rain, the scene of the rugged Mt. Inwangsan was especially attractive with fog thickening in the valley. Gyoemje, Jeong Seon didn't miss the chance to draw it into a piece of work with elaborate skill which looks so lifelike. Getting wet from the rain, the rockwall in the back looks heavy and enormous. For this, the painter used the top-down method of brushwork in the repeated way with much India ink. The ridges and trees are depicted in black in the same way as unraveling threads down, while the fog in white, which makes them in vivid contrast, the peaks and valleys of the mountain.

Among his 400 pieces of work, this is acknowledged as the most prominent masterpiece with extreme creative skill.