富永丸山７７４番地から 南に向かう道は 土塁状に 盛られています。更に 南南東に向かうと 数枚の平坦地が 北緯34度52分54秒・東経133度45分12秒を 中心にしてあり、燈明用の石グロや 戒名が刻まれていない供養碑らしき石柱が 建っています。かつてここに城が 建っていたと伝えられていますが、空堀 土塁等は ありません。更に ここより東方向 北緯34度52分54秒・東経133度45分17秒にも 城に関る建物があったそうです。現在 そこは畑になっています。入り口を除く四方は 険しい崖（恐らく作壁）で 囲まれています。立地状況や 規模等から推測して 虎倉城下の船山城の出城と思われますが、しっかりと攻守できる地勢でないので 攻防を意識した城ではなかったのでしょう。天正８年（1580年）の虎倉方の死者は 土井三郎右ヱ門唯一人とされる 上加茂合戦の物語に この城は登場しませんが、複数の供養石があるので 恐らく 毛利軍が退却時に ここにも布陣したのでしょう。船山城 勝山城の項目を参照ください。 Seihiro-jyou/castle is also called Tominaga-jyou   If you go toward the Wada-kamigumi "upper group" from the Shimodoi post office near Riout 66, and,  turn widely toward Taiou, you will arrive the anomalous six-fork　If you go along the rightmost road, you will arrive 774  Tominaga-Maruyama   The back mountain are the ruins of Seihiro-jyou    There are mount-marks and a well　The flat lands where can not be declared as unnatural plain land, continues to the east from here   The slope of the mountain is lined with flat lands, it are abandoned cultivated lands or the tools to make tree planting easier    The mountain path from 774 Tominaga-Maruyama toward the  north, is conducted land elevation work as earthwork ”mount”    If you go along the path to toward the north, you will fined few flatlands arounds at N 34degrees 52minutes 44 seconds, E 133degrees 45minutes 20 seconds   A rock arrangement for light offered to god and some number of stone pillars without a posthumous Buddhist name which seem to be memorial tower, were stood on the flat land　 It is said that ａ castle building had been built on this flatland formerly, but there are no dry moat ,no earth work and so on    It is said that there was a building related the castle on the place at N 34degrees 52minutes 54 seconds, E 133degrees 45minutes 17 seconds where is at the east from the flatland    There became the farms currently　This area is enclosed with cliffs “unnatural wall probably” except the entrance    It can be inferable from the geographical conditions and the structure that these are a branch castle of Hunayama-jyou which was under the influence of Kokuraj-you     Because the geographical features of these areas are not adequate for offensive battle and defensive battle, this castle was not built with the aim of hard battle probably    Because it is said that the dead soldier of Kokura force's side was only one “Saburou-uemon Doi” during Kamigamo-gassen/battle in 1580 and the few memorial towers were on the area, a part of Mouri side’s soldiers stayed here at the time of the retreat of the Mori-army probably    Please refer to Hunayama-jyou and Katuyama-jyou   平成２４年（２０１２年）１月２４日