"The Mining Journal" 1945 January - Vredenburgh.org
is milling approximately 150 tons of gold ore daily at its Clendon. An average of 50 tons of copper ore is units of the new 300-ton leaching plant of the Emerald hIe copper. lead. and zinc produ:tion in Ca!ifornia was dumper avera g 16 standard railroad cars of ore per hour. $10,000 appropriation to create a Rob.