Gold Resource Corp. announced preliminary production results for the fourth quarter and full year 2017.  The company produced approximately 28,117 gold ounces and 1,773,263 silver ounces for the 2017 year, which met its annual gold and silver production target ranges.   For the fourth quarter of 2017, gold and silver production totaled approximately 9,209 ounces and 555,550 ounces, respectively.