Guillaume Maurice's Photo Gallery
Concrete plug on a gallery entrance.
La Barre Mine, Saint-Jacques-d'Ambur, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, FranceConcrete plug at one of the gallery entrance, this one partially flooded.
Concrete plug on a gallery entrance.
La Barre Mine, Saint-Jacques-d'Ambur, Riom, Puy-de-Dôme, Auvergne-Rhône-Alpes, FranceOne of the concrete plug that block the gallery entrances for us rockhounds while letting bats fly in.