The manufacture of paper Valley takes its name from where it was built: at the bottom of a valley. The site was so important that we built a dam downstream of the river in 1920. The factory employed 250 workers and had 1000 people living in the region. The production was 4000 tons of paper per year. In 1965, the business closes because of European competition.

The whitening trays rags.

The laundry room scraps of stationery.

The buildings of the paper mill valley of Belle Isle in Newfoundland. The site was active from 1855 to 1965.

In the quarry of Meudon Montalets. The five quarry levels.

We used to come to rest in this beautiful round room during our visits to the quarry. The hole in the center of the room no longer exists. At left, behind the door, there's a view of the corridor from the heights.

On the ceiling there is a site for a large beam. There was probably a winch.

The Musée d'Orsay is actually an old train station. The Gare d'Orsay was designed by architect Victor Laloux in 1898. The station was inaugurated two years later, in 1900 at the Expo. Shortly after the Second World War, the station is decommissioned. There sometimes filming. In 1973, the station is included in the supplementary inventory of historical monuments. An architectural competition was organized in the 80s to rehabilitate the old station. The Orsay Museum was inaugurated in 1986.

source: Wikipedia

This room is one of the largest of the underground quarry sand. Its length is over 20m. The pillars of wood supporting structures are now as fragile as paper.
However, the ceiling is very strong. While the underground quarry remains wet sand stays compact. There was very little collapse since I know her.