File:Big Pit, National Coal Museum. Wales - Flickr - Loco Steve.jpg
![File:Big Pit, National Coal Museum. Wales - Flickr - Loco Steve.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Big_Pit%2C_National_Coal_Museum._Wales_-_Flickr_-_Loco_Steve.jpg/585px-Big_Pit%2C_National_Coal_Museum._Wales_-_Flickr_-_Loco_Steve.jpg?20200721022012)
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[edit]DescriptionBig Pit, National Coal Museum. Wales - Flickr - Loco Steve.jpg |
History of the working pit The site has some of the oldest large scale industrial coal mining developments in the South Wales Coalfield, with workings dating back to 1810 on the Coity Mountain. The nearby Coity pit had been driven in 1840, but was a then traditional circular single tramway 12 feet (3.7 m) in dimension. The new main shaft was sunk in 1860, named "Big Pit" due to its elliptical shape with dimensions of 18 feet (5.5 m) by 13 feet (4.0 m), the first shaft in Wales large enough to allow two tramways. On completion it became the coal-winding shaft, while the older Coity shaft was used for upcast air ventilation. In 1878, the main shaft was deepened to reach the Old Coal seam at 293 feet (89 m). By 1908, Big Pit provided employment for 1,122 people, and by 1923 at peak, there were 1,399 men employed, producing: House Coal, Steam Coal, Ironstone and Fireclay; from the Horn, No. 2 Yard, Old Coal and Elled seams. On nationalisation in 1947, the National Coal Board took over the mine from the Blaenavon Co. Ltd, which employed 789 men. By 1970 the workforce only numbered 494, as operations had focused solely on the Garw seam, with a maximum thickness of only 30 inches (760 mm). The NCB agreed the development of a drift mine, which by 1973 meant that windings at Big Pit had ceased, with coal extracted close to the refurbished Black Lion coal washery. The Coity shaft was abandoned, with the Big Pit shaft used for upcast air ventilation and emergency extraction. The pit finally closed on 2 February 1980. Information from Wikipedia |
Date | Taken on 26 August 2012, 09:14 |
Source | Big Pit: National Coal Museum. Wales |
Author | Loco Steve from Bromley , UK |
Flickr tags InfoField | pwll mawr , amgueddfa , lofaol , genedlaethol , big pit national coal museum , wales , coal , mining , blaenafon , torfaen , steam locomotives , steam , train |
Camera location | 51° 46′ 02.41″ N, 3° 04′ 58.94″ W ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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This image was originally posted to Flickr by Loco Steve at https://flickr.com/photos/36989019@N08/7879349414. It was reviewed on 21 July 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
21 July 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:20, 21 July 2020 | ![]() | 2,485 × 2,546 (1.19 MB) | Red panda bot (talk | contribs) | In Flickr Explore: 2012-08-27 |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D3000 |
Exposure time | 1/500 sec (0.002) |
F-number | f/5.6 |
ISO speed rating | 160 |
Date and time of data generation | 09:14, 26 August 2012 |
Lens focal length | 92 mm |
Orientation | Normal |
Software used | Microsoft Windows Photo Viewer 6.1.7600.16385 |
File change date and time | 22:31, 26 August 2012 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 09:14, 26 August 2012 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.3 APEX (f/4.44) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |