Ōya Mine History Museum, Mining and history museum in Kesennuma, Japan

Ōya Mine History Museum is a single-storey wooden building with a floor area of 168.51 square metres, opened in 2005 in Kesennuma. Inside, 450 items are displayed, including rock drills, a battery car, a 2-ton Granby mine car, a tyre loader, gold ore and photographs of mining work and workers' daily life. From the entrance, the former ore-dressing plant site of Ōya Mine can be seen in the distance.

The Ōya Mine was a gold mine, prospected in 1905 and employing 1,303 workers at its peak. It closed in 1976 when the resource was exhausted. Former employees formed a preservation society that collected machinery and raised funds, building a storage house on the mine site in 1988. The current museum opened on 1 April 2005 next to it, and its founding ordinance and name changed when Motoyoshi Town merged into Kesennuma in 2009.

The museum's name comes from the Ōya mine, where 1,303 people worked at its peak before it closed in 1976. Former miners formed a preservation society that gathered machinery and raised funds, and their collection moved into this building in 2005. Exhibits include a battery car, a 2-ton Granby mine car, a tyre loader and gold ore.

The museum is a single-storey wooden building with a floor area of 168.51 square metres, and entry is free. It opens from 10:00 to 16:00 and closes on Wednesdays, or the following day when Wednesday is a holiday, as well as over the New Year period. There are 20 parking spaces, and the site is about 10 minutes by car from Koganezawa Station on the JR Kesennuma Line. From outside the entrance, the former ore-dressing plant of the Ōya Mine can be seen in the distance.

The museum building is a single-storey wooden structure with a floor area of 168.51 square metres, built for about 18 million yen next to the older storage shed. From the entrance you can look out over the former ore-processing site of Ōya Mine. The 450 items on display were donated by the preservation society of former miners.