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Castle Mine (Castle-Trethewey Mine), Haultain Township, Gowganda area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada

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Latitude & Longitude (WGS84): 47° 40' 35'' North , 80° 44' 29'' West
Latitude & Longitude (decimal): 47.6763888889, -80.7413888889


The deposit was discovered in 1917 and developed through two shafts by Castle-Trethwey Mines Ltd. Production to the end of 1931 totaled 6.5 million oz. Ag and 300,000 lbs. Co. The mine was reopened by Agnico-Eagle Mines in 1983. They rehabilitated the Castle #3 shaft (11 levels to 850ft.) and operated until sometime in the late 1980's.

Mineral List


17 valid minerals.

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References

Sabina, Ann P., 2000. Rocks and Minerals for the Collector: Cobalt-Belleterre-Timmins, Ontario and Quebec, GSC. Miscellaneous Report 57, 266 p.

Ontario Dept. of Mines, 1968, MRC No.10, Silver Cobalt Calcite Vein Deposits of Ontario, by A.O.Sergiades

OGS 1978, Rpt.175, Geology of the Gowganda Lake-Miller Lake silver area, District of Timiskaming, W.H. McIlwaine

Northern Miner Nov.17, 1983

Mineral and/or Locality  
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