MINEBK00290

• County: Park
• Volume: 13
• Document: Inspectr
• Suffix: A

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- = - ore treatment.
1lethod ~1oY~d .3melting.Ylne has"a oonoantrating miii butie not
~, in use - .•
Explosives.
Ezploaivo used is.aelatina 4D per cent; and aerman Inaoioid Ries.
Ho metal tamping bare are allowed in mine,wooden tamping bare are
provided.lto powder man e~cployed.E:cploaivea,are atorad in magazine
provided ?or that purpoae,whioh is I00 feet from bulldings,Amount
kept in storage:=35o lba.charaotar of magaaina:-Iron.Yine la pro-
vided with devioa for thawing po:vder.Charaoter of device:-Coil
heated with warm water.lto oil,cadlea or'oombuatiblee atorod with
Fonder.
Yining.
The main opening to this mina is by a shaft 540 feat daop with
levels driven north and south the shaft is oonneoted on lower
jlavel by a aeries of atopea with the Last Ohanoe shaft soma 400
or 500 foot distant.
Tha Last Ohanoo shaft is provided with a ladder way,but none in
Itho Hilltop shaft.
',t/ork is oarried on at the present time from the Hilltop shaft,and
conneoted with Last Ohanoo shaft,
Hoisting.
:lothod omployed:-8team.Yon era raised and loxerod by maohinery.
Haight of load hoisted:-1600 ibs.Dietanoe hoisted:-540 feat.0ablo
la made of eteel,and has boon in use I2 monthe.Olampe and thimble
fasten rope to oage,>aae ohnngad eight months ago.0aga le equipped
r-ith bonnet and safety olutohos,xore tested oot.Iet,191I.0agor ie
omployad,Ylning Hureau Dods of signals .Poreone aro prohibited
frog riding on loaded oage,and order poetod.Lover ohaire aro uaad
for oage.0age guides are 4 X 4 inoh Oregon pine.fltationa are pro-
vided wild guard rsile,also rinaee and raises.
Kine aothode.
xethod of ore extraction:-Sloping and drifting.xo machine drills
in uee,8ingle and double hand driiiing.
zimbering;-ftulle.tuffiolent.Oharaoter of tiabere,nativo timber
vrepared at a1no.Ordinary sine chutes ass uood in mine.
Tremmins if done by aen with ordinary nine Dare on d i S2 ib.raii.
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