Stoping in Bisbee

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Roger Weller, geology instructor    copyright 2008-R.Weller 


Stoping in the Calumet and Arizona Mines,
Bisbee, Arizona

by Philip D. Wilson, 1916
Trans. A.I.M.E.
19 pages  (pages 118 to 136)

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This historic document describes the mining practices used
in creating headframes for stoping in Bisbee in 1916.