About Argonaut Gold. Argonaut Gold Announces Resumption of Full Operations at All Mines. It … Argonaut Gold is a Canadian gold company engaged in exploration, mine development and production. During the quarter, Argonaut completed two heap-leach expansions at El Castillo and a leach-pad expansion at San Agustin. At this time, leaching and gold absorption operations are continuing and metal production has not been impacted. At this time, leaching and gold absorption operations are continuing and metal production has not been impacted. Its primary assets are the El Castillo mine and San Agustin mine, which together form the El Castillo Complex in Durango, Mexico and the La Colorada mine in Sonora, Mexico. TORONTO, Oct. 29, 2019 /CNW/ - Argonaut Gold Inc. (TSX:AR.TO - News) (the "Company", "Argonaut Gold" or "Argonaut") announces that the El Castillo mine is subject to an illegal blockade. TORONTO , Oct. 29, 2019 /CNW/ - Argonaut Gold Inc. (AR.TO) (the "Company", "Argonaut Gold" or "Argonaut") announces that the El Castillo mine is … Argonaut Gold Inc. announces that mining operations at the El Castillo mine in Durango, Mexico have been halted as the result of an illegal blockade. The Company has a legal and binding agreement in place with Atotonilco ejido … TORONTO, Oct. 29, 2019 /CNW/ - Argonaut Gold Inc. (TSX: AR) (the "Company", "Argonaut Gold" or "Argonaut") announces that the El Castillo mine is subject to an illegal blockade. (Image courtesy of Argonaut Gold). As a follow up to the press release dated October 22, 2015, Argonaut Gold Inc. is pleased to announce that the illegal blockade at its El Castillo mine ended on the night of …