The Trethewey Mine is an abandoned silver mine in Cobalt, Ontario, Canada, located northwest of the Coniagas Mine near Sasaginaga Lake.[1] The mine was discovered in May 1903 by William Griffith Trethewey.[citation needed]

References

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  • "Trethewey". Abandoned Mines Information System, Ministry of Energy, Northern Development and Mines. Retrieved 2011-07-19.
  • Tretheway Mine, Cobalt, Coleman Township, Timiskaming District, Ontario, Canada

47°24′00″N 79°41′07″W / 47.4°N 79.6852777778°W / 47.4; -79.6852777778