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N20799

Old Hartley Colliery, Seaton Valley

Old Hartley, Seaton Valley

55.077495, -1.484324

Bloom Pit

Reclaimed

Last Updated:

5 Sept 2021

Owners: 

Delaval Family

HER Info

This is the site of the Bloom Pit. It was sunk from 1791 to 1792 - but had only a short working life. It closed in 1797. This, like many other coal-mining sites of the area, was both owned and operated by the Delaval family. As such the coal raised to the surface in large baskets was probably used in the Seaton Sluice copperas-, glass- and salt-works. There were many short-lived mines in this area; the style of underground workings are unknown here.

'Sketches of The Coal Mines in Northumberland and Durham' T.H.Hair, published in 1844

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