Mount Oyama (Toyama)

...Tachiyama (Manyoshu), written by Otomo no Yakamochi, the governor of Etchu during the Nara period, is a general term for the mountain range including Tsurugidake. Generally, when people say Tateyama, they are referring to the highest peaks, Onanjiyama (3,015m) and Oyama (2,992m), but it can also refer to the three Tateyama mountains, including Jodoyama (2,887m) to the south and Betsusan (2,882m) to the north. All of the Tateyama mountains are composed of ancient hana-kousen greenstone and Hida metamorphic rocks. ...

*Some of the terminology that mentions "Oyama (Toyama)" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…奈良時代，越中の国司大伴家持に詠われた〈たちやま〉(《万葉集》)は，劔岳を含めた連峰の総称である。一般に立山というときは，最高峰の大汝（おおなんじ）山(3015m)と雄山（おやま）(2992m)を指すが，これに南側の浄土山(2887m)と北側の別山（べつさん）(2882m)とを加えた立山三山を指す場合もある。立山はいずれも古期の花コウセン緑岩と飛驒変成岩で構成されている。…

※「雄山（富山）」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