Old photograph of the underground quarry of Saint-Paul-Trois-Chateau. The stone blocks are mounted on carriages, ready to be lowered to the bottom of the hill for shipping.

You say Hole?

The underground quarry violet is a very fragile quarry.

The Church of St. Nizier was built on very old ruins of a temple.

Reconstitution of an old mine shaft at the mining museum of Saint-Etienne.

The limestone quarry of Chanaz is a smaller operating on three levels. The ceiling height is between 5 and 10m. Sometimes, holes in the floor let you see underground levels.

The network size is almost 4km developed. It was exploited from 1860 to the end of the Second World War to make cement. Portions was reused as mushroom farm thereafter (row crops and cultures in bags).

In this photo taken at the highest level, we see the intermediate level, row crop bottom right and even two holes overlooking the lower level. This is the most impressive part of the network with large volumes!

An old telecom center. Now it's a wasteland.

The Archangel Michael dominates the old Lyon.

An old culture of fungus in stacks in the underground quarry Keppler Méry sur Oise.

Those wonderful barrels stands in an old brewery.

Some old tools like conveyor in the old quarry Spinelli of Montesson.