A mountain in the northwest of Nobeoka City, in the northern part of Miyazaki Prefecture. The 80-meter-high Gyokuro-no-taki waterfall falls from a cliff halfway up the mountain. It is a rocky mountain of granite porphyry at an elevation of 830 meters, with steep cliffs running from east to west. Gyokuro-yama was formed in the Miocene epoch of the Tertiary Period, when granite porphyry intruded into cracks caused by the rise of the Ookueyama granite body in the northwest. This vein of rock continues from west to east with Mt. Tansuke, Mt. Yahazu, Mt. Hiei, Mt. Gyokuro-yama, and Mt. Eno, all of which have steep mountain forms. The mountain is divided into Mt. O in the west and Mt. Me in the east (799 meters), with a waterfall in between. Located near Nobeoka City and accessible by bus, it is a popular tourist destination for local residents. It is part of the Sobokatamuki Quasi-National Park. The name was given to the area because the shape of the gaiter, which is a leather gaiter used in ancient horse riding, resembles the shape of a mountain. [Junichi Yokoyama] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
宮崎県北部、延岡市(のべおかし)北西部にある山。中腹絶壁に落差80メートルの行縢ノ滝がかかる。標高830メートルの花崗斑岩(かこうはんがん)の岩山で、東西に切り立った断崖(だんがい)が連なる。行縢山の形成は第三紀中新世で、北西部の大崩山(おおくえやま)花崗岩体の上昇に伴う割れ目に花崗斑岩が貫入したものである。この岩脈は西から東に丹助(たんすけ)岳、矢筈(やはず)岳、比叡(ひえい)山、行縢山、可愛(えの)岳と続き、いずれも険しい山容である。山は西の雄(お)岳、東の雌(め)岳(799メートル)に分かれ、中間に滝がかかる。延岡市の近郊にあってバスの便もあり、市民の行楽地となっている。祖母傾国定公園(そぼかたむきこくていこうえん)に属する。なお、行縢は古代乗馬用の皮脚絆(かわきゃはん)で、形が山容に似るため、名づけられたという。 [横山淳一] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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