Exploration and Analysis on the Historical Remains of Wooden Fence in Koguryo Mountain City

The mountain city is the one that is built as a kind of fortifications in the mountains by Koguryo people. This kind of city is widely distributed in the region of China’s Liaoning Province, Jilin Province and the northern part of Korean peninsula. Currently the Koguryo mountain cities seen in China are mostly stone-built and earth-built, and some are stone-and-earth mixed construction. This is because its regime’s early land is located in the mountains, and the use of stone is a native aboriginal tradition, but the later occupy is the plains, so the choice of building material became the earth according to local conditions. Recently, the author has found that there are some remains of the wooden fence in some small mountain cities, whose defense system are built by contacting the stone with the wooden fence, during the survey on the mountain city in Liaoning Province. The wooden fence should be an important part of the fortifications of the Koguryo mountain cities, and the cave stone relics previously discovered should also be related to this.