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