Hand steel

Source: Wikipedia, the free encyclopedia.

Hand steel is

underground mining.[1][2]

References

  1. ^ "Shernrooke Village and A Gold Mining Exhibit". Archived from the original on 2012-09-28. Retrieved 2011-08-03.
  2. ^ Housser, Yvonne McKague (July 2004). "Cobalt Mining District: National Historic Site of Canada". Parks Canada: 5. {{cite journal}}: Cite journal requires |journal= (help)