龍岡黃龍山城과 黃海∼大同江沿岸路- 고구려 후기 王都방어체제의 一例-

Abstract

Hwangryong mountain fortress(黃龍山城) which stretches its fortress walls based on Osuk mountain located in Yonggang-Gun Pyeongannam-Do of North Korea is a large mountain fortress with 6.6km in circumference which makes it the largest fortress of Koguryo in the surrounding area. Enough living spaces that this fortress had secured and its structure allowing easy assess from the flatland prove that this fortress was constructed in consideration of easy access of nearby residents. After occupying this area where was previously Jeomsunhyun(􂋲蟬縣) in the Lelang Commandery period, Koguryo constructed and set the Hwangryong mountain fortress as new base of regional control. This can be proven from its construction method that the Hwangryong mountain fortress showed the characteristics of mountain fortresses in the mid-and late Koguryo era. In addition to this, Hwangryong mountain fortress was also a foothold for the regional defense. It can be proven from its geological location on the coastal road between the Yellow Sea(黃海) and the Daedong River(大同江) as well as various fortresses in its surrounding areas. Woo mountain fortress(牛山城), Dongjin fortress(東津城), Neukmyeong mountain fortress(勒鳴山城), and Bo mountain fortress(保山城) were arranged along the north and west shores of the lower Daedong River. It seems that Koguryo used a systematic defense system including these fortresses and Hwangryong mountain fortress to control the coastal road connecting the Yellow Sea and the Daedong River and deal with any invasion in case of emergency.