Pedzisa mutsara unotevera: Chinhu chinonyanya kuoneka cheNamhansanseong chiri munharaunda yaro; kune nzvimbo yakakura, yakatwasuka inonzi Gorobong, ine nzvimbo yakaderera uye yakakwirira kumativi anopfuura 480 m pamusoro pegungwa, uyewo kuva gomo rakakwirira pamusoro penzvimbo dzakadzika kuti zvive nyore kuona nzvimbo yakapoteredza. Nemhaka yezvinhu izvi, Namhansanseong yakashanda senzvimbo yekuraira kubvira panguva yeUnified Silla muzana ramakore rechinomwe. Silla yakabatana yakavaka nhare yeJujangseong apo Namhansanseong anogara nhasi kuti agadzire varume uye kugovera zvinhu apo yairwisana neTang Dynasty muzana remakore rechinomwe. Muzana ramakore rechi 13, mukati meGoryeo Dynasty, Namhansanseong yakanga iri nhare mukurwisana ne
Kupinda kwevaMongol. Kubvira muzana remakore rechi17, Namhansanseong, iri pedyo neguta guru reSeoul, yakakura zvikuru kuva nhare yomumakomo, ichishanda seguta guru rinokosha ramambo weJoseon.