摩利支天神社と想像する小社が 祀られています。町の図書館に この城の存在を示す書物はありません。百坂城や 小森城から 鍋谷城や清経城へ向う途中の三谷口の南の４２９号線と 焼谷川の大きな曲がりを 手に取るように 見渡せる事ができる場所です。敷地も小く 犬走り 空堀等がない事から ４２９号線の見張り台や 狼煙台の役割を持っていた 砦であったのでしょう。 There is Tubaki-tawa/pass with an irregular six-way road where is between Mitani-syuuraku/comunity and Komori-onsen in Hutagawa, in Mitani-Onji    If you choose the road which heads toward the left direction, you will reach to ruins of Mitani-jyou/castle and ruins of Komoru-jyou   There are two ways to turn right, if you go along the way with gentle angle, you will reach to Mitani -Hirodou 445. if you go along the mountain path on the north side of Mitani Hirodo 445, you will reach to the Sakuhei-ti “ artificial flat land” at the point where I estimate that it is 34 degrees 54 minutes 38 seconds north latitude・133 degrees 47 minutes 57 seconds east longitude   There are no  moat no  earthwork and no  belt-like enclosure　If you go down gently from there,  climb again along the the narrow way which is made with land elevation, you will reach to the ruins of Odani-jyou where is a circular artificial flat land on the top of Odani-yama/ mountain where is estimated to be 34 degrees 54 minutes 36 seconds north latitude ・ 133 degrees 47 minutes 57 seconds east longitude  A small shrine which I believe as Marisi-ten-sya/shrine , is enshrined on the place     Route 429 at the south of Mitani-guti/entrance where are on the way from Mozako-jyou & Komori-jyou to Nabetani-jyou & Kiyotune-jyou and large curve of Yakitani-gawa river were looked over quite clearly from this place    This castle might be a fort took surely on a role of watch‐keeping place or signal fire, as this was a narrow space without Inubasiri “berm・belt like narrow enclosure surrounding the main enclosure” and Karabori “horikiri・artificial trench”     三谷口：北緯34度54分47秒・東経133度48分4秒    ４２９号線の大きな曲がり：北緯34度54分37秒・東経133度48分4秒    鍋山城跡：北緯34度51分54秒・東経133度47分56秒    清経城跡：北緯34度51分1秒・東経133度47分56秒 　 平成２５年（２０１４年）２月１４日