Park Lane Quarry
Park Lane Quarry is consists of 500 meters of underground workings spread over 100 square-meters, it can be found less than half a mile from larger Ridge Quarry.
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Pickwick Quarry
Also known as Hartham Park, it was Bath stone until 1939 when it became a temporary naval store, the stores were then transferred to Dean Hill and quarrying continued. In the 80s the quarry became a quarry museum.
PINDAR Bunker
PINDAR is a secure government bunker complex, constructed in the 1990s beneath the Ministry of Defence headquarters on Whitehall in Central London.
Portland ROTOR
A single story, underground operations block constructed in 1950 as part of a project to provided complete radar cover for the UK, it went in to operation in 1953. The site is now in private ownership.
Primary Network Control Center
To the Western end of Tunnel Quarry was an area which was the proposed number 1 district as part of the ammo stores, however due to a severe geological fault this area was never developed by Royal Engineers however the air ministry did make use of it 1943 when they converted it in to South West Contol, a military communications center which opperated up until the 1990s.
Redcliffe Caves
A complex of man made caves under Bristol carved out of red sandstone. The caves are open to the public for one or two weekends a year, more details can be found on the Axbridge Caving Club website.
Ridge Quarry
Originally quarried for Bath stone up until 1914, it was later put in to use by the War Department as a sub-depot of the Central Ammunitions Depot Corsham.
Rocks Quarry
The Rocks is one of the smallest of the Bath stone quarries, it consists of just one passageway about 200 meters in length, stone from the quarry was used to build the near-by estate of the same name.
Salisbury Urban District Control Centre
Now disused, the Salisbury UD control bunker is a fairly small but really well built bunker, which was put in to use in 1963.
Sandhill Park Estate
Originally the Lethbridge family home, it was used as an army hospital during the WW2 and then put in to use as a hospital for handicapped children by the local council, it has since been closed down.
Sands Quarry
Sands is a fairly small quarry connecting to the Southern end of Spring Quarry, it is only about 4.6 square miles. Sands is used as an emergency exit. Refelctive metal check points guide the way from the Spring Quarry emergency exit to surface slope shaft of Sands Quarry lit only be a torch light.
Singleway Mine
A small quarry spread through out a hill top near Bath University.
Spring Quarry
A large stone quarry which was converted by the air ministry during WWII, the quarry housed the world's largest underground factory. Later it became Royal Navy stores and part of the factory was converted in the government's emergency relocation site in the event of nuclear attack. Spring Quarry joins the south edge Tunnel Quarry, it also joins the smaller abandonned Sands Quarry.
Swan Mine
Swan Mine, also known as Kingsdown Quarry is a great, average size quarry with loads of quarryman’s tools and artefacts still remaining today.
The Ships Graveyard
Actually nearer the small village of Purton, many boats lie in the mud on the banks of the Severn, some concret hulled boats still remain in good condition today, while the wooden ships slowly rot away. In the middle of the Severn the wreck of an old cargo ship which sunk can be seen on low tide.
Tunnel Quarry
Tunnel Quarry was one of the four sub-depots of the Central Ammunitions Depot, parts of the converted Bath stone quarry are still security classified sites today. The quarry connects to the northern edge of Spring Quarry and also had a link to the GWR main line at the eastern portal of Brunel's Box Tunnel.
Westwells Quarry
A small Bath stone quarry which has been buried under new housing in Corsham. The quarry was known by two names, Westwells Quarry and Moor Park Quarry.
Westwood Quarry
A large Bath stone quarry, parts were used to store British art during WW2 and as an underground Royal Enfield factory. Part of the site is still used today by Wansdyke Security for secure storage space, other parts of the quarry are being quarried by Hanson.
