Revision history of "Ramp-in-vein"

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  • (cur | prev) 18:17, 25 March 2014SDMcKinnon (talk | contribs). . (1,281 bytes) (+1,281). . (Created page with "== Comments from George McIsaac == The biggest challenge by far is the length of the stope. Assume that you develop sublevels every 20 metres from floor to floor and that you d...")