Yoro Mountains - Yorosanchi

The mountain range, which rises to the west of the Nobi Plain in the Chubu region and runs north to south, is about 30 kilometers long and 3 to 8 kilometers wide from east to west. Its southern part forms the border between Gifu and Mie prefectures. The flat surface of the peneplain is distributed on the mountain tops, with the highest peak in the north at 908 meters. The geology is Chichibu Mesozoic and Paleozoic strata, and it is a tilted land mass cut by a fault on the Nobi Plain side to the east, with a gentle slope on the west side. The fault scarp on the east side has been eroded to form a series of triangular end faces, and the foothills are lined with composite alluvial fans, with rivers generally becoming waterless rivers, and some becoming ceiling rivers. The alluvial fans in the north are mainly used for growing Fuyu persimmons, and in the south they are used for growing mandarin oranges. On the other hand, there are also many tourist destinations, such as Yoro Falls in the north, Mt. Tado in the south, and Tado Taisha Shrine at its foot.

[Masanobu Ueshima]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

中部地方、濃尾(のうび)平野の西方にそびえて南北に連なり、延長約30キロメートル、東西の幅約3～8キロメートルの山地。その南部は、岐阜・三重両県の県境をなす。山頂には準平原の平坦(へいたん)面が分布し、最高峰は北部にあって908メートル。地質は秩父中・古生層で、東の濃尾平野側を断層で切られた傾動地塊であり、西側の斜面は緩やかである。東側の断層崖(がい)は侵食されて三角末端面を連ね、山麓(さんろく)には複合扇状地が並び、一般に川は水無(みずなし)川となり、一部は天井(てんじょう)川となっている。北部の扇状地ではおもに富有(ふゆう)ガキが栽培され、南部ではミカン栽培に利用される。他方、北部の養老ノ滝や南端の多度山およびその麓(ふもと)の多度大社のように、多くの観光客の訪れる所もある。

［上島正徳］

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