Argonaut Gold, Inc. engages in the exploration, mine development, and production activities on gold-bearing properties. Its primary assets are the production stage El Castillo mine and San Agustin mine, which together form the El Castillo Complex in Durango, Mexico and the production stage La Colorada mine in Sonora, Mexico. The company was founded on April 3, 2007 and is headquartered in Reno, NV.