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Grass Valley

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Detail from medium-size hammer mill.<br /> Empire Mine, Grass Valley, Ca.
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Detail from medium-size hammer mill.
Empire Mine, Grass Valley, Ca.

Empire MineGrass Valley

  • Old Headframe, used to winch men and equipment up and down mineshafts.<br /> Empire Mine, Grass Valley, Ca.
  • Old Headframe, used to winch men and equipment up and down mineshafts.<br /> Empire Mine, Grass Valley, Ca.
  • Empire Mine, Grass Valley, Ca.
  • Empire Mine, Grass Valley, Ca.
  • Old Headframe, used to winch men and equipment up and down mineshafts. This appears to be a footing from a power winch(most likely steam powered).<br /> Empire Mine, Grass Valley, Ca.
  • Old Headframe, used to winch men and equipment up and down mineshafts.<br /> Empire Mine, Grass Valley, Ca.
  • Small hammer mill, used to pulverize gold-bearing ore.<br /> Empire Mine, Grass Valley, Ca.
  • Small hammer mill, used to pulverize gold-bearing ore.<br /> Empire Mine, Grass Valley, Ca.
  • This appears to be a boiler room, judging from the sturdy construction and the chimney.<br /> Empire Mine, Grass Valley, Ca.
  • Pelton wheel, driven by high-pressure water jet - may have been used to power large hammer mill immediately adjacent.<br /> Empire Mine, Grass Valley, Ca.
  • Pelton wheel, driven by high-pressure water jet - may have been used to power large hammer mill immediately adjacent.<br /> Empire Mine, Grass Valley, Ca.
  • Pelton wheel, driven by high-pressure water jet - may have been used to power large hammer mill immediately adjacent.<br /> Empire Mine, Grass Valley, Ca.
  • Pelton wheel, driven by high-pressure water jet - may have been used to power large hammer mill immediately adjacent.<br /> Empire Mine, Grass Valley, Ca.
  • Medium-size hammer mill, used to pulverize gold-bearing ore.<br /> Empire Mine, Grass Valley, Ca.
  • Medium-size hammer mill, used to pulverize gold-bearing ore.<br /> Empire Mine, Grass Valley, Ca.
  • Detail from medium-size hammer mill.<br /> Empire Mine, Grass Valley, Ca.
  • Detail from medium-size hammer mill.<br /> Empire Mine, Grass Valley, Ca.
  • Detail from medium-size hammer mill.<br /> Empire Mine, Grass Valley, Ca.
  • Detail from medium-size hammer mill.<br /> Empire Mine, Grass Valley, Ca.
  • Detail from medium-size hammer mill.<br /> Empire Mine, Grass Valley, Ca.
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