MINEBK01099

• County: Gunnison
• Volume: 16
• Document: Inspectr
• Suffix: A

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machine shop, offices, boarding house and stable, and ore bins.
Tyro 80 H P boilers, one 4 II P engine, one 30 H P, one 12 H P,
one 150 ii P and one compressed air engine, 80 H. P.
E% P Z O S I V E S
Giant powderrFr-y,p_n. Insoli3 fuse and crooden tamping bars are
~, used. Exr~losives in excess of one day's sunnly are not stored
underground. The average amount of explosives kept in storage
~~ i.. 150 lbs. This is kept in a frame building, situated about
3GG feet from other buildings and i~or};infs. i'he device for
tharrin poti~der is a double hot vrater boiler.
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The main opettin~ is a tunnel 24G0 Poet long, where work is
carried on at the present time. The rnothod of ore extraction
is over hand stoping and drifting r~ith hand drills. From
entrance to tunnel the vein is at u distance of 70 foot. The
tirabeEs are spruce sets, 4 feet apart, prepared by hand and
are sufficient to secure safety. Underground tra;arnin~ is
none by hand. gars are used. System of ventilation is
:.atursl* a_~d is sufficient. Liethod of underground lighting
is by candles.
S T Ii T I S T I C S
Tot;sl number of Poet in s}iafta 50. Cost per foot y16.00
Total nwnber of feet in tunnels 2400. Cost per foot ;18.00
Total number of feet in drifts or levels 1000. Cost per ft. yl2
Total nwnber of feet in :vinzes ~ raises 400. Cost per ft. ~2b~
Total number of feet in development 5655.
bverago assay value ore per ton about w3G.00
Cost per ton mining of ore X5.00 i
Coat per tea trsnsporting ore y2.00 toy`6.00 I
Cost per ton treatment of ore ~•
~~ y2.00 to y5.00