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Events for October 15, 2026
Mines, manganese and mistakes – Alison Barraclough
The region around Harlech is well known the Harlech Dome, mineralisation and the Mochras borehole. The most famous and economically important mineralisation is the Dolgellau gold-belt centred on two mines, Clogau and Gwynfynydd, the former closed in 1998 but now being investigated for unexploited gold veins. Less significant are the sedimentary manganese deposits from beds ...