Yangsan city, Gyeongsangnam-do Singiri acidic mountain town Singiri 20, bukjeongdong acid 20, which is located in San hogyeri 112,260 Street, is situated in the province and its adjacent areas in normal sulfuric 157,074㎡ area. January 21, 1963 has been designated as Historic Site 97. Were identified before and after the Unified Silla period in Singiri acid dongbyeok identity is part chochuk walls. Building a proper layer of conducting 品 shaped exterior walls have been installed and the air mass bochuk this was confirmed conducted ethnic brought about by 5㎝ distance from the proximal end toward the inside wall height 1.7m (total 3.2m) about this. According to the status of the remaining walls is estimated to be composed of at least three times over the outside shot, but can differ depending on the period since the chochuk reconstruction. Thus, as early as the time chochuk itgetda can be estimated in the mid to late 05 century to 07 century. In addition, it is estimated that maintaining the functionality of the castle until the Joseon period, when viewed as being presumed to be retroactive to rectify togipyeon Silla and Unified Silla period in the province of giwapyeon artifacts, and the minutes of the Goryeo Dynasty giwapyeon cheongsagi pieces, porcelain pieces, including a large amount of and is identified as consisting of at least three times the number of renovations since chochuk. Therefore, it is estimated to have been used by the captain continued, Ulsan, ipbo of Eonyang Longshan county property (入堡用山城) through shipbuilding and electricity, as well as the Unified Silla period considered, including the production period is used to geumjeongsan castle built Singiri acid production is.
It was found that occupies a very important position to identify the remains Singiri acid based between Silla, go, the Nakdong River basin of bleach fight sahoesang time when the review process and comprehensive view more details. Itgetda can also note that the non sapryang occupied an important position in the value fired in defense and attack south of Silla go Singiri Acid production.