Argonaut Gold Announces Updated Economic Parameters to the December 2013 Magino Prefeasibility Study

TORONTO, ONTARIO -- (Marketwired) -- 09/17/15 -- Argonaut Gold Inc. (TSX: AR) (the "Company", "Argonaut Gold" or "Argonaut") is pleased to provide an update on the prefeasibility study using economic parameters applicable to its 100% owned Magino gold project, located ...