Mining basin of Ronchamp and Champagney

47°42′5.86″N 6°39′21.68″E The mining basin of Ronchamp and Champagney is a territory located in the department of Haute-Saône and the French region of Bourgogne-Franche-Comté; economically, socially, environmentally, and culturally marked by the intensive exploitation of coal in its subsoil between the 18th and 20th centuries. It consists of the three main municipalities of Ronchamp, Champagney, and Magny-Danigon as well as several hamlets and other neighboring villages.

Source: Wikipedia — Mining basin of Ronchamp and Champagney (CC BY-SA 4.0)