MINEBK00847

• County: Lake
• Volume: 14
• Document: Inspectr
• Suffix: A

Surfsae transportation: Wagon road to Granite-Aerial wire rope
tramway 3400 Peet frori mine to mill.
Ore treatment:-Milling and concentration,mine has an amalgama-
ting m111,With three wilfley tables Por concentration.
Explosives.
Gelatine powder 40 per pent is used in blasting,with German In-
soloid fuse-No iron tamping bars allowed in mine,wooden tamping
bars being provided-No powder man employed-Explosives are in a
magazine provided for that purpoae,whioh is situated 500 Peat
from worKi.7ga-Amount kept in storage-500.1bs.Mine is provided
with device Por warming powder.-Character of device-Y~arm water
heater-No oils or combustible material stored with powder.
LSining.
The main opening to the workings consists of a tunnel 4;0 Peet
in length which is connected with a tunnel above 300 feet in
jlength,the connection is made by an upraise of I00 feet,there
;are 350 feet of laterals driven from the main working tunnel,
',slap an incline 85 feet in depth and a winze 65 Peet deep below
the main turinel.There are no buildings at the portal of these
tunnels,and consequently no neoeasity for Pire doors.
}dine methods:-Stoping and drifting are the methods employed in
ore extraction-Machine drills are employed-Ingeraoll.Single
hand drilling also used-Timbering by atulle and aetta,prepared
at oompanys mill-OM inary mine chutes used in mine-Tramming by
men with ordinary mine oars on 24 lb.rail-No water handled.
Ventilation:-Natural draft-9uffioient.
Lighting underground:-Electricity and candles.
Statistics.
Total No. of feet in tunnels:-II00.-Goat Per foot:-$20.00.
" " " " upraise:-I 00. " " " •-$I 0.00.
M " M " " W1nZee :-150. " " " :-$I2.00.
Total No.of feet in develoDement:-1350.
Men employed.
8 Machine drillmen. $4.00. Der day. 8 hour shift.
2 " helpers, $3.50. " " 6 " "
0. " " K M "
I Miner, $3.5
I Timberian. $4,00. " " 8 " "
r " y,~ r n
S Trammera. $3.00.
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