Tachibanayama

This mountain is located in the northwest of Fukuoka Prefecture, on the border between Higashi-ku, Fukuoka City and the towns of Shingu and Hisayama in Kasuya County. It is 367 meters above sea level and is composed mainly of granodiorite and Sangun metamorphic rock. It is a strategic military location at the northern entrance to the Fukuoka Plain, and the ruins of a castle on the summit were built by Otomo Sadatsugu in 1330 (Gentoku 2), and were known as the "fortress of Chikuzen." The primeval camphor forest in the surrounding area is famous as the northernmost forest of giant trees that grows naturally in the area, and was designated a Special Natural Monument in 1955 (Showa 30). It offers a great view from the summit, has well-maintained hiking trails, and is included in the Genkai Quasi-National Park. Mandarin oranges are grown near the foot of the mountain.

[Masaaki Ishiguro]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

福岡県北西部、福岡市東区と糟屋(かすや)郡新宮(しんぐう)・久山(ひさやま)両町との境にある山。標高367メートルでおもに花崗閃緑(かこうせんりょく)岩、三郡(さんぐん)変成岩からなる。福岡平野の北口に位置する軍事上の要衝で、山頂の城跡は、大友貞載(おおともさだとし)が1330年（元徳2）に築いた山城(やまじろ)であり、「筑前(ちくぜん)の要塞(ようさい)」といわれた。付近一帯のクスノキ原始林は1955年（昭和30）特別天然記念物に指定された自生北限の巨木林として有名で、頂上からの眺望に恵まれ、ハイキングコースも整備されており、玄海(げんかい)国定公園に含まれる。山麓(さんろく)付近ではミカン栽培が行われている。

［石黒正紀］

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