Quarries of Herblay are over 14km wide and some hundreds of meters deep, on hillsides along the Seine.

In 1776, the exploitation of new underground quarries in Paris was forbidden. People had to take the stone elsewhere. It is for this reason that the quarry was known as "Imperial quarry" or "Quarry of the city of Paris". They built many monuments in Paris with this stone because it was high quality (the famous Royal stone).

Among the monuments built, there was The Pantheon of Paris, Department of Marine Place de la Concorde, the Gare de l'Est, the mint as well as many statues at Versailles.

The network's quarries has been excessively exploited in Herblay. The ceiling is fragile and the walls separating the tunnels are very thin. To reinforce the quarry, they have added many pillars and reinforcement structures.

Later, like many underground quarries, they served to mushroom plantation in the 1980s. The workers have dug additional corridors between small quarries networks.

A few years later and they were gradually abandoned. The latest mushroom plantation closed in 1995.

Since 2003, the association "Herblay heritage" has undertaken to make public visits to the part of the "English entry" with the famous double-arched vault and pretty ponds.

Those jacks allowed the main concrete railroad to get down and free the hovertrain from the track.

A plaque engraved in underground quarries of Paris.

Railway extended Sceaux in Paris.
The consolidation of existing quarries in the way
railway was begun February 25, 1892
under the direction of Mr. O. KELLER
Chief Engineer of Mines Inspector General of Quarries.
by G. HUMBERT mining engineer
and completed on 1 May 1893

The main outdoor Molitor swimming pool. In the years 2K.

The main entrance of the quarry.

Duration:00:01:02

A video of the rails of the papermaking factory. Lenght: 1 min 02

Etis May 2001. Instead of allowing everyone the freedom to consult his conscience, in
Evins issues of faith, the Church has always felt the need to hold in trust, and
deprive any initiative even at times brilliant minds at first, but still
slave then, it has engulfed within it. This boldness comes from his claim
it has to possess all the lights of the Holy Spirit ...

The bigest statue of the justice palace, in the very front of the main building.

The main dome of the fashion store called "Printemps" (spring). It was built in 1923 by the glassworker master Briere.

Some training equipment to let the FBI playing war. Those equipment use an old bunker as main structure