The archaeological features of a number of Goryeo celadon kiln sites were discovered during an investigation of Kilns 18 and 20 in Jinseo-ri, and Zone 7 in Yucheon-ri in the Buan area. The discovered kiln, which exhibits a 20m-long tunnel-style shape, consisted of mud walls, a furnace, a firing chamber, and a chimney - all of which are connected together by a long hole; and an arch-shaped ceiling.

The relics recovered from these ancient kiln sites were made in the heyday of Goryeo celadon, sometime between the late twelfth century and thirteenth century. They include dishes, bowls, saucers, bottles, pots, chairs, and other objects decorated with a wide variety of designs and motifs, including lotus, parrot, cloud and crane, lightning, chrysanthemum, vine, peony, fish swimming through waves, waterfront views, and so on. Goryeo celadon is generally known to have been used only by members of the upper class, such as kings and aristocrats. However, judging from the celadon found through actual research, plain rice bowls and dishes without patterns were baked in significant quantities by piling up ten or twenty of them together at a time; and were then supplied to the public at a low price. As for the high-quality celadons inlaid with designs of clouds, cranes, or pomegranates, they were fabricated only in small quantities and supplied to the upper class at a high price.