pubs.usgs.gov · Pillar Stope Stope on footwall vein Stope on hanging-wall vein Foot of raise or...

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Transcript of pubs.usgs.gov · Pillar Stope Stope on footwall vein Stope on hanging-wall vein Foot of raise or...

Page 1: pubs.usgs.gov · Pillar Stope Stope on footwall vein Stope on hanging-wall vein Foot of raise or winze Head of raise or winze Raise or winze extending through level Ore chute