MINEBK00315

• County: Clear Creek
• Volume: 10
• Document: Inspectr
• Suffix: A

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Lucanie t~nel, 10 a 10 ft. 4,209 feet.
900 feet of drifting upon lodes ,intersected by the tunnel.
All buildings ore ecst of tunnel port el and far enough a~:ay
so t~.et fir would not endanPer the tunnel portal. The method
of ore extraction is by Leyner & Sullivan end Ingersoll ~echine
drilled oleo by single hand drilling. Pine and apruco timbers
preperad in the rough and used in aqucre sets cud stulls end
are sufficient. The loading ebutes ore of plonk. The under-
ground system of training is by mules, using Truax cars, 20
lb T roil, 16 in puege. All tenter is drained thro the tunnel.
The ve•-tilation is by exhaust blower no. 4 and 1~cCo11 auto-
metic system cud is sufficient. The undergro•uid lighting is
by candle.
STATISTICS.
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io, feet in tunnel 4,209
" " levels 900
Totcl nc. dt. in de~~elop.~ent, 5,109
Cost of i~el per ton .5/85
Ores produced easoy from y4 to ,;161 per ton.
Send blanks to John ,ScColl, sup't, Idaho Spring a, Colo.
The [ScColl ventilating aparatus consists of a pipe 30 to 7U
ft, hi~~. On top of ti:is pipe an elbow is mounted on a swi~t~l,
havia~ a weather vane on it so that i` will awing t^ith the
wind. The elbotr hag c fleri^.g mouth. Oa en 18 in pipe the
size of the opening will be about 36 in. cone shaped. Twd of
these apparati have been installed in Clear Creek Co. One
on the Lucania tunnel sucY,in~ air a distance of 4,209 ft.
thro sn 16 is pipe, and one in the i.;cClelland tunnel, at Lu
"Bout, sucking air thrc a fifteen in pips a distance of 7,149 ft.
The upright pipe in the latter•cnse being 75 ft. high. Ia both
the ILucania and fficClelland tunnels. there are iteina which can
readily be leased because this apparatus is s.iccesafnl ea a
ventilator.
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