Letter Mine, Letter, Mizen Peninsula, Co. Cork, Ireland
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|Latitude & Longitude (WGS84):||51° 33' 42'' North , 9° 31' 7'' West|
|Latitude & Longitude (decimal):||51.5616666667, -9.51861111111|
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.
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
12 valid minerals.
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Dr. Richard Unitt & Barry Flannery (personal observations 22-1-11)