The Ronchamp Coal Mines were an area of coal mines located in the Vosges and Jura coal mining basins, in eastern France. They covered three municipalities; Ronchamp, Champagney and Magny-Danigon. Operated for more than two centuries, from the mid-eighteenth century until the mid-twentieth century, they have profoundly changed the landscape, the economy and the local population.
Mining began in Ronchamp in the mid-18th century and had developed into a large industry by the late 19th century, employing 1500 people.
Wikipedia https://en.wikipedia.org/wiki/Ronchamp_coal_mines
Address (Unnamed Road), 70250, France
Coordinates 47°42'32.502" N 6°38'45.806" E