Nantgarw Colliery
The deepest mine in south Wales. Nantgarw Colliery was one of the flagships of the National Coal Board. It was the nearest deep mine to Cardiff, and a reminder to travellers that they had entered the south Wales coalfield. Opened in 1911, it boasted two large shafts and, at a depth of 782.73m (856 yards), was the deepest mine in south Wales.
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