hard rock gold mining process

hard rock gold mining process

It was underground, hard-rock mining operations that transformed California gold mining into a corporate activity. It was in the Northern Mines, clustered around Grass Valley, which dominated underground mining. In the beginning, the gold-bearing quartz was wrenched from underground veins by backbreaking, dimly lit sweat and blood.

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  • PROJECTS DONE 6250

    PROJECTS DONE

  • Serve the nation 160

    Serve the nation

  • Enterprise staffs 600

    Enterprise staffs

  • skilled worker 260

    skilled worker

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