Gold Resource Corporation is a gold and silver producer, developer, and explorer with its operations centered on the Don David Gold Mine in Oaxaca, Mexico. The Company is focused on its existing infrastructure and land position surrounding the mine in Oaxaca, Mexico, and to develop the Back Forty Project in Michigan, United States. The Back Forty Project has a polymetallic (gold, silver, copper, lead, and zinc) Volcanogenic Massive Sulfide deposit. At its Don David Gold Mine, it has 100% interest in six properties, including two Production Stage Properties and four Exploration Stage Properties, located in Oaxaca, Mexico, along the 55-kilometer-long San Jose structural corridor. Its two production stage properties include Arista and Alta Gracia Mines. The Alta Gracia project is approximately 20 kilometers northeast of the village of San Pedro Totalapam. Its four exploration properties include Margaritas Property, Chamizo Property, Fuego Property and Rey Property.