Paper mills are based Landes November 8, 1927. At the time, the paper needs are important and France imports a lot of paper. The plant produces between 12 and 15 tons of paper. In 1934, the plant is in bankruptcy. Another company bought the paper industrial plant (pine cellulose). The mill changed its name to the company of stationers Roquefort.

At maximum activity, the factory employed 500 people in the manufacture of paper and kraft paper. In 1975, the company produces 125 tons of paper per day.

On June 28, 1978, the company ceases all activities and selling buildings. Other buildings are leased to small businesses. 20 years later, there were still huge abandoned buildings. Nobody made the decision to destroy them because it cost too much.

source: Website of Yves Roumazeilles(FR/EN)

Quarries of Paris - The network located in the Val de Grace hospital.

The old quarries of the Val de Grace are medieval. They were exploited from the 13th century to 16th century.

In 1621, Anne of Austria asked Louis XIII transfer Benedictine nuns of the Convent of Bievre in Paris. The venue was the current location of the Val de Grace.

In 1638, the architect Francois Mansart began construction of a church and an abbey. In digging the foundations, he discovers that he is above old underground quarries. These voids are surveyed, mapped and consolidated. But Mansart spending too much money and who is the architect Lemercier completed the job.

For the purposes of work, workers have built a staircase to the underground quarries and give the name of Mansart.

In the underground quarry Ouache in Saint-Maximin. A red writing on the wall: The basement of the sun.

The origin of the silver-lead mines Trémusson is Roman. It was already long pieces of Roman origin in the galleries. An excavation site has confirmed the original site, by the discovery of tiles to hook on both sides of the creek.

In the late 17th century, the English are precursors in the mining of nonferrous metals. They buy logging concessions in Britain. However, the site is still not exploited Trémuson. The concession is then awarded on 1 April 1732 to a Breton of Morlaix Guillotou of Kerver. Speculation around the precious metal is growing, which does not prevent the owner from going bankrupt due to a bad investment.

In 1740 the Mining Company of Lower Britain bought the concession. It will take 40 years to industrialize the mines. In 1782, more than 500 people work at the mine site. The size of the concession is over 90,000 hectares. It will never be fully exploited. At the end of the 19th century, the exploitation fall. The owners regularly change without success.

It was not until 1922 that the operation resumes. A laundry room is built on a hillside in 1924. She can wash the ore and the sort because the deposit is less rich than in ancient times. A year later, a foundry was built. The operation is successful for ten years, then the company suffers Dufourg the general crisis. In 1931, the mine was permanently closed. It will never be exploited.

Today, the mines are protected refuges for bats but the many miles of tunnels continue to drain the lead in the village by water infiltration. The villagers can not eat vegetables from their gardens or drink water polluted groundwater. There are remains of the laundry and the foundry behind the village.

source: patrimoine.region-bretagne.fr(FR)

In the underground quarry Ouache in Saint-Maximin. Mushroom cultivation had to adapt to the terrain of the quarry.

Panoramic view on the rooftop of CNIT (Centre of New Industries and Technologies).

CNIT was built in 1958. Its architects are Robert Camelot, Jean de Mailly, Bernard Zehrfuss and Jean Prouvé. In 2010, the building still has the largest range of concrete arch in the world: 218m.

Built in 1522, the castle of the bull is a defensive fortification. It was upgraded by Vauban in 1700. The work took about 45 years. The castle of the bull has never been a major military role. It has been used as a prison for a long time. In 1914 he was classified a historical monument. This does not prevent the Germans using it as DCA during the Second World War. After the war, the sailing school Morlaix settles for 20 years. Then in 1980, it is abandoned. Fishermen love to come and make a fire to eat but they ransacked the wood fittings. Today it is finally restored and visited by the public.

From left to right:
- The dome of the observatory of the Sorbonne. In the dark.
- The dome of the chapel of Sainte-Ursule de la Sorbonne.
- The dome of the Pantheon in Paris.

In winter, there are many bats in this quarry, thank you not to disturb them!

This well was the only access to other parts of the quarry. Here, explorers sure to be the only ones in the quarry let the rope that we see. After they know about us. They came to retrieve the rope. Ridicule does not kill. In short, we had to dig the stone steps to the next time. In the end, it was more practical to have a permanent ladder!