Etymology and distribution of 土石川.

Toishigawa 【土石川】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Mie-ken Tsu-shi . Mie-ken Yokkaichi-shi Originated in Hazu-cho. A place name with a record since the Muromachi period. The place name was also written as "Hazu" and "Hazu". "Hazu is the book" means.