Sierra Madre Gold and Silver has commenced underground mining at the Coloso silver-gold mine, located within the producing Guitarra complex in Mexico. The mine was previously developed and mined by First Majestic Silver, and has over 12 kilometers of underground workings. “This marks another milestone event in the restart of the Guitarra mine complex. The Coloso estimated resource grades are…
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Guitarra hits commercial production
Precious metals miner Sierra Madre Gold and Silver commenced full commercial production at its Guitarra mine complex in Mexico’s Silver Belt on January 1. The processing plant, underground mine, and all aspects of the operation have now been running at the current capacity of 500 wet metric tonnes per day for the past 90 days. “I am very proud of…
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