Matsuo, Iwate
Matsuo was a village located in Iwate District, Iwate Prefecture, Japan.
The village of Matsuo was created on April 1, 1889 within Kita-Iwate District with the establishment of the municipality system. Kita-Iwate and Minami-Iwate Districts merged to form Iwate District on March 29, 1898. On September 1, 2005, Matsuo, along with the towns of Ashiro and Nishine, was merged to create the city of Hachimantai and no longer exists as an independent municipality.
Matsuo was formerly known as the home of Japan's largest sulfur mine—the Matsuo Kōzan —and, later, as the home of the Matsugawa geothermal power plant. The iron and copper Matsuo mine was also located there before abandonment in 1971.
As of September 2005, the village had an estimated population of 6,786 and a population density of 28.89 persons per km². The total area was 234.85 km².Sister cities
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