Bald Mountain Gold Mine - North Block

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The Bald Mountain mine lies within the Southern Ruby Mountains of northeastern Nevada, approximately 110 kilometres southeast of Elko. Bald Mountain is operated by Barrick and ore is sourced from multiple open pits over an estimated 150,000 acre property. Processing is done at multiple conventional heap leaching facilities using carbon absorption for gold recovery. In February 2010, the Federal Bureau of Land Management (the “BLM”) approved a planned expansion designed to significantly increase production and extend the mine life at Bald Mountain.

Mining has occurred in the Bald Mountain Area since the late 1800s. Minerals recovered include copper, antimony, silver, and gold. Most of the early mining occurred next to a small granitic intrusion south of Big Bald Mountain. Large-scale commercial gold mining began in the area in 1976 at the Alligator Ridge Mine. Previous and current mining operations have occurred in five areas resulting in 26 open pits, 30 rock disposal areas, 10 heap leach pads, and seven process ponds. Sedimentary rock in the Proposed Action area consists of Paleozoic limestone, dolomite, shale, quartzite, siltstone, and sandstone. These have been intruded by Mesozoic age granitic porphyry, which is directly associated with the districts wide alteration.

Reference:

www.barrick.com/GlobalOperations/NorthAmerica/BaldMount...