Letter Mine, Letter, Mizen Peninsula, Co. Cork, Ireland
Baryte and copper mine worked sporadically from 1852-1893. The majority of mining (for baryte) took place from 1889-1893 with 800 tons being produced.
Photo: Barry Flannery
A blocked up adit level is visible today along with several fenced off ?collapses or pits. A considerable amount of spoil also remains and is highly similar to material found at Ballycummisk mine.
Main site and area of spoil at ITM 494719 535432
13 entries listed. 12 valid minerals.
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Dr. Richard Unitt & Barry Flannery (personal observations 22-1-11)
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Locality Updated: Les Perrères Dam, Valtournanche, Valtournanche Valley, Aosta Valley, ItalyFrom Paolo Bosio, 1st Oct 2014 22:26:44