Etymology and distribution of 海岳.

Kaigaku 【海岳】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Iwate-ken Kitakami-shi . Originating from Ibaraki-ken Namegata-shi . A place name with a record since the Asuka period. Iwate - ken In Kitakami - shi tells that he used "direction" from the direction to Oka Kataoka with the descendant of Kataoka Child Spring , which is the warrior of the Heian period and the Kamakura period. 片岡 Kataoka reference.