Kanmuriyama Tunnel

...At the southern foot of Mt. Kanmuriyama lies the Kanmuri Plateau, 800m above sea level. Settlers arrived there in 1946, but mountain huts and ranches were established around 1953, and it became a popular day trip destination from Hiroshima City and Yamaguchi City. The Chugoku Expressway, which opened in 1983, passes through the Kanmuri Plateau with the 2,190m-long Kanmuriyama Tunnel, and the Yoshiwa Interchange is nearby. The Kanmuriyama Mountains extend from Mt. Kanmuriyama to Mt. Asa (1,218m), 50km northeast, and are made up of mountains with small undulating peaks such as Mt. Osorakan (1,346m) and Mt. Jippo (1,319m). The upper reaches of the Shibaki River in the mountains contain the Yawata Basin, which has an annual rainfall of 2,500 to 2,800mm. ...

*Some of the terms mentioned in relation to the Kanmuriyama Tunnel are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…冠山南麓には標高800mの冠高原があり，1946年に開拓者が入ったが，53年ころから山小屋や牧場が設けられ，広島市，山口市方面からの日帰り行楽地となった。83年開通の中国自動車道は冠高原を長さ2190mの冠山トンネルで貫き，近くには吉和インターチェンジがある。冠山より北東50kmの阿佐山(1218m)までを冠山山地と呼び，恐羅漢（おそらかん）山(1346m)，十方山(1319m)など山頂に小起伏面を残す山々からなり，山間の柴木川最上流部に年間降水量2500～2800mmをもつ八幡盆地をはさむ。…

※「冠山トンネル」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報