MINEBK01080

• County: Gunnison
• Volume: 15
• Document: Inspectr
• Suffix: A

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EXPI_OS I VES.
Gelatine a0?; pecrdor is used, imported Incolid Z.L.fuso;
5-x caps and wooden tamniny bars arc used.^nxplosivgs in rx-
cess of one days supply are not stored underground. i
The average amount of explosives kept in storage is 5000
pound,. This is kept in_a log Uuilding covered with :iron '~
situntrd about 300 feet north of tunr}e~ gad used for this
purpose only. Oils candles and other cgmbustibles ure.atored I
in the old power house avray froth any othrr bttilding.,The device'.
for thawing powder is a steam, coil in a small powder thawer. ',
_' I N I T? G 6 11 D IS I N E 1~ E T FI 0 D S.
The main opening is a eras, cttt tunnel 6560 feet in length
:vhere it tans what is ;movm as the f300 vein. Prom this point
of intersection the tunnel is, driven on the vein both ways
far about 2500 feet on each side. There is only a little
stoping being done. The mill is co:nplr.ted and vri11 need
some adjusting beforr. it will be able to fully take care of
' and drifting
tiro ore. The method of ore extraction is overhand stoping~
_ erith air drills. Ingersoll hammer and Pistnn drille are
used, The method of timbering is stalls and srluare sets
covered with lagging.
The timbers are pine and spruce, prepared by hand and are "
sufficient to secure safety. Underground tramming Ss clone by
h(utd and mules. Steel corr. arc uued for tramming. Chutes are
landed by hand and gravity. The system of, ventilation is
natural Lo a certain extant, also a large Root blower used ',
us n suction run^ all tlta time. All old tlmbnrs have been
removed From ttndrrground and the sanitctpy CUllditi0713 ACA good.
Acetylene lamps and candlr.n era used underground for light^
ing. Thera is only ono exit at present, but un upraise is
being worked toward the surface a r1lstFtnre of 1200 feet.
T A T I :S T I C S. '
..
About 1;_;000 foot of drifts and twtnels in the, Carter Iii
tunnel.
Tharp lu about ?.000 feet cf shafts and drifts on other
clnims,Cont per foot an average of ~l0,00•
Total nurabcr of feet Sn upraises 700.Crs t, per foot, Q60,oo.
Coat of powder $,15{/., "