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Not far from the ruined mill is the entrance to a flooded silica mine. Up to about 90 years ago silica was mined here and had been since the early 1820's. A large number of old mine workings are to be found on both banks of the river The silica was used for making high quality fire bricks. Such was the exceptional quality of the brick they became known all over Europe and America and were exported worldwide. The bricks were made at Pont Walby,near Glynneath, the works closing in 1920. |
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......but a glance at the other side makes everything clear. |










