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KEYSTONE MINES INC.

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KEYSTONE MINES INC.

California
Branch

Summary

Copper, Nickel, Lead, and Zinc Mining

Industry

Profile

Incorporate State: Idaho | Since: | Main/Branch: Branch | Profile views: 3

Address

State: California | County: Mariposa | City: Mariposa | Address: 5008 STATE HIGHWAY 140 | ZIP Code: 95338-2434 | Map URL: 5008 STATE HIGHWAY 140 MARIPOSA CA 95338-2434

Classification

Description

Copper, Nickel, Lead, and Zinc Mining

Establishments in this category are primarly engaged in developing the mine site, mining, and/or beneficiating (i.e., preparing) ores valued chiefly for their copper, nickel, lead, or zinc content. Beneficiating includes the transformation of ores into concentrates. Establishments primarily engaged in recovering copper concentrates by the precipitation, leaching, or electrowinning of copper ore are included in this industry.

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