It is said that this mine was found in 708. Since then, Many gold and copper had been mined here for a long time.
the mine was at its peak after WWⅡ.
But, the mining was halted in 1978 due to slumping the market prices and exhausting resources.
It takes 40-60 minutes by walking to get outside from entrance and the temperature of mine is around 15 degrees Celsius all the year.
It’s recommended you bring jacket for keeping body temperature.
Unfortunately, there ‘s no English descriptions about this mine and English audio guidance in mine gallery. But it’ll be fun for only walking on the mining gallery.
There are few public transport from/ to here. you have no choice but to come here by driving a car or hiring a vehicle.
Osarizawa Mine Official Website (Japanese only)