Okuizumo

 is a town located in Nita District, Shimane Prefecture, Japan.
It was formed on March 31, 2005 from the merger of the towns of Nita and Yokota.
As of March 1, 2017, the town has a population of 12,655 and a density of 34 persons per km². The area is 368.06 km².
History.
The town of Okuizumo was one of the early centers of Tatara iron making method and remains the only modern site of it, producing a steel for the traditional Japanese swords.
Nearby Komaki mine was used to produce tungsten from 1911 to 1984.