Etymology and distribution of 北岩.

Kitaiwa 【北岩】^{レベル3
About 120}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Okayama-ken , Miyazaki-ken .

① Topography . From the black river. Kagoshima-ken Kagoshima-shi Shiroyama-machi was in the Edo era in the Kagoshima Samurai of the Clan office.

② Miyagi-ken Oosaki-shi Birth of Matsuyama Kanaya Kuroie. A place name with a record since the Edo period. Miyagi-ken Sendai-shi Aoba-ku Kawauchi was in the Edo era in the Sendai Samurai of the Clan office.