01 / Mine office
A white three-storey wooden officewas moved about 500 m south.

Built in 1905 as the main office of the Kosaka mine run by the Fujita-gumi company. The three-storey timber building has a square-ring plan, and its front fits a wooden veranda porch into Renaissance-style plaster walls, an exterior the Agency for Cultural Affairs calls rare in type. It was moved and restored about 500 m south in 2001 and became an Important Cultural Property in 2002.
- Built 1905
- Moved and restored, 2001
- Important Cultural Property, 2002


