This paper is an archaeological review of the distribution pattern of Mahan fortress in the Haenam-gun of Jeollanamdo.
As a result, there were no site in Haenam that could be regarded as fortress in the Mahan period. The Oknyeobong Site is mentioned as an important remains to show the early Mahan, but there was no clear evidence to be called fortress by survey. Unless the traces of the artificial construction of wall are clearly revealed through excavation, it is difficult to judge them as Mahan's fortress at this point.
Meanwhile, earthenwalls began to be observed in the Gyeongsang area after the 4th century, and prior to that, the remains of the ancient village, which were defended by wooden fences and trenchs, have been identified.
There is a high possibility that the site of the fortified settlement will be identified, even if the cases of the sites of Cho Seong-ri Site in Boseong and Jicheon-ri Site in Jangheung are seen, Oknyeobong Site is likely to have been high-altitude settlement sites equipped with defense facilities. The future excavation of the Oknyobong Fortress is expected to be of great help to understand the shape of Mahan politicians who existed in the Haenam.