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<br />The surface plant consists of .one 5 drill air compres
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<br />,.~„~', which is run by electricity, ono electric 50 H. P, hoist,
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<br />I j !which is run by electricity, one 50 by 20 two story frame
<br />Y~~~~~9~I. :building boarding
<br />~ h house to accomodate 40 men two 50 tors
<br />.a ! ore bins at the head of tram, This is located at the entre
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<br />i'i(,! ~ of tunnel,, Surfnoo transportation is done by aerial tram,
<br />p' ~~ ; is 21/4 miles long, This connects with the Smuggler-Union
<br />III ! at Pandora,
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<br />ys by
<br />{)~~ ;, Black Bear -3-
<br />it~i~ ~ - O R E S AND ORE B O D IES, Contin,.
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<br />~I)~ ,Height 750 feat, The character of enclosing~is breccia,
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<br />~~, I :are no faults in the vein, The pro shoot in the Black Beart
<br />~ ~ !continuous, The character of vein filling is Country Fock,
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<br />I~~il i Quartz and Sulphides, Ths metals are gold, silver, lead,
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<br />i zinc and iron, All of the_vsin fillin is conce
<br />i~ g ntration ore,
<br />{ .with an average of $15,00 .per .ton,. The production is 130 tor,
<br />per lay,
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<br />~li `' i SURFACE .PLAN, T, _
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<br />~ {~ ~ EXPLO S IV E S,
<br />I~lili~ i DuPont 40,; powder, Boar fuse and 5-x caps and :wooden
<br />i I I i tamping barn are used, Expl.osivos in excess of one days suppl
<br />~', ~ ~ ~ ' are nct store,! underground. The average amount of explosives
<br />L•ept in stor•a:;a in 4000 pounds, This is Y.opt in a fr•amo, :ro
<br />~~~ ~ , ~~ ~,~ i covered magazine situated about 200 feet from Shaft house or
<br />I ,any other buildins ar:d used for this purpose only. The devla
<br />~~ji~'~ !for drawing in a galvanize iron double bolter for posdorhoal!
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<br />~j , ~ ~, M I 1J I N G A if D MINE M E T ft O D u,
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<br />Tho main oponing is a crosoout drnnol 500 fast ton(;,
<br />'~ whore it tape the Dlack Bear vein and the tunnel 1s run on A
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<br />,;i i,voin, a distanoo of 30 feet in a South-pastern diraotlon~ it
<br />is whore a tvro compartment shaft is sunY, 450 feet deep, Rith
<br />' running oft' at intervals evvey,100 feet. The main work lots
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<br />parried on in number 3 and 4 !.wets running ooutlr-oast. Both
<br />drifting and atopinp, is Laing parried on in these. two levels'
<br />I Tho method of ore extraction is overhand stopin,^,
<br />with air and driftlnF
<br />drills,
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