Over the course of 400years, miners dug 1,234 kilometers to get ocpper. (the distance is about from Tokyo to Hakata). The depth also reached about that of Tokyo Bay.
Dozan Kanko is a Copper Mine Museum which has been created throughout 400years of history. Within the tunnels, one can view the history of the Ashio Copper Mine from the Edo Period(1610-1867) through the Meiji, Taisho, and Showa Eras. Mannequins and mine trains are displayed to demonstrate how the mine worked. You can study the history and system of the Ashio Copper Mine here.
In addition to this, there is "Chusenza" outside. One can see the process of how to make coins from copper. Also, one can look at tools used in the Ashio copper mines and materials in that museum.
It takes customers to the Mine Tunnel by tram / Welcome to the "Ashio Dozan Kanko"
