Hecla Mining Co. July 16 said its Greens Creek Mine produced 1,856,125 million ounces of silver during the second quarter, a 10 percent increase over the 1,689,183 oz. recovered from the Southeast Alaska operation during the same period of 2014.

Hecla attributes this higher silver production to improved recoveries and grade, partially offset by slightly lower tonnage.

Silver recoveries increased 8...