explorers in 1736 (see picture of tile plaque in Uruachic town Hall) and enjoyed a long period of prosperity from the production of gold and silver. The town even minted its own silver coins as legal currency. Historic production ended around the time of the Mexican Revolution, as was the case with many mines in Mexico. The Uruachic area has numerous old mine workings, possibly more than a hundred in all. The workings range in size from small exploration pits to regular size mines with sub-levels ,tracks, ore-chutes & tunnels up to 400m long. The extent some workings indicate that there had been a very significant production from these mines. The alteration zones hosting these mines are among the largest in the Sierra Madres. This alteration is associated with a collapsed caldera complex, which presents extremely attractive exploration targets for large gold and silver deposits around the world.http://www.goldengoliath.com/properties/ |