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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): 47.67639,-80.74139


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


18 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoarchean - Mesoarchean
2500 - 3200 Ma
Mafic to intermediate metavolcanic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Superior Province

Lithology: Basaltic and andesitic flows, tuffs and breccias, chert, iron formation, minor metasedimentary and intrusive rocks, related migmatites

Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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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