milfraenIn 1865 Jayne & Co. sank a new shaft on a site that appears to have originally opened in 1843, and this worked it until 1884.

It was reopened some years later by the Blaenavon Iron and Steel Company, who worked the Old Coal seam at a depth of 236 yards by 1900.

Production ceased in 1933, it was then used for ventilation purposes only until final closure in 1950.

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