Seaton Delaval Colliery
New Hartley, Seaton Valley
20 Sept 2021
Hartley Main Collieries Ltd. (1929 - 1947), National Coal Board (1947 -)
HER Info (unless otherwise noted)
The New Hartley Colliery is depicted on the Ordnance Survey map of 1898, but not the 1865 edition. Air photos taken in 1947 show a large conical spoil heap, a small reservoir, a shaft, a powder magazine with blast wall, wagonways and other colliery buildings. All these remains have been demolished or levelled on more recent air photos.
Ordnance Survey, 1898
Hastings Pit, 1953. Source: Northern Mines and Collieries, Facebook
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Historic Environment Records
Durham/Northumberland: Keys to the Past
Tyne and Wear: Sitelines
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