Etymology and distribution of 岩河.

Iwakawa 【岩河】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Ooita-ken Usa-shi . Ooita-ken Usa-shi Birthplace of Akashinin-machi 筌 ノ 戸 口 (Uke nocti). A place name with a record since the Edo period. The place name was also written as "筌 口". The name of the place is from the name of Mr.

Iwagawa 【岩河】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Saga-ken Ogi-shi , Toukyou-to · Kagoshima-ken Ooshima-gun Setouchi-chou .

① Saga-ken Ogi-shi Distribution in Ashikari cho Araga.

② Kagoshima-ken Ooshima-gun Originated from Shishima (Ukejima) of Setouchi-chou .