Wikipedia
Gémonval
Gémonval is a commune in the Doubs department in the Franche-Comté region in eastern France.
Coale mines are operating in the village between 1826 and 1944.
2015-02 Puits Elisabeth 01.jpg|Mine-schaft of Elisabeth. 2015-04 - Puits de la Houillère - 10.JPG|Mine-schaft de la Houillère. 2015-04 - Puits des Essarts - 08.JPG|Mine-schaft des Essarts. 2015-04 - Puits des Essarts - 05.JPG|Plinth of steam machine in mine-schaft des Essarts.
Puits n° 3 Gémonval.png|A sectional view of the mine-schaft #3.
ht : "houille tendre" (coal),
hg (gray) : "houille gypseuse" (coal).