MINEBK01039

• County: San Miguel
• Volume: 15
• Document: Inspectr
• Suffix: A

'~~ ,~
~
~
.
~ ~
'' i
:
-3-
.
, ~
,i'1 ~
UUU
`3
200 Peet Prom tunnel, about 30 days supply of powder is
~
t' i
i
stored therein. Electricity is used for thawing powder.
'
~ V
1(I N Z N G A l1 P M I N E M E T H O D 3
~ .
'a; ~ ~
I The main opening i_s a crosscut:~tunnel 2}OQ ft. in length
j~
i Where it taps the Liberty Bell vein and a raise on the vein
11
~;I 1000 ft high *.o connect rith old workings. This raise is
zj
;i _ used for main shaft. It is divided into three compartments.
5i
One for ecip and cage, one Por air and water PSPea and the
'~ ~
~ other for mahway, with a good ladders and landings every
h! ao feet. The method of ore extraction is overhand stoping
j, r; anfl drifting. with machine drills; with filled stopea oP
o_e. The ore is drawn off at inbervaie, eo that the

1I ~~ miners are able to stand, to wort, at all times. The method
'~~i of tirvtieri^.g Ss stulls and square seta co^ered with legging.
I The timberr, ere pine and spruce, prepared by hand. UnQer-
, "grcvnd tramming is done by olectrie motor, mules end hand,
~
~ i~, steel cars eie used for tramming.-Shoots era ioaded by hand
~S! ~ -
I;
~
' and gravity, Tt1e system of ventilation Ss moat
It natural.
~'
!
J one smell pump"le usod to pump water from s
ump at bottom of
~~ ~~
~ raise, Pump !e in operation at difPOrent tunes of the day
, ,,~ but only Por 15 minutes et s time.

Electricity la usod Por lighting undNrground. Ths mina

~
II~ has three exits,'orte at P isvel to aurPaee, one by I level
' '!~. to surface and one by
L level to surfaco. All love la nre
~
~
~ connected by goo4 menwava with loddors and lendingn not to
'
i'~ orceefl 7.0 feet ripart~ which nr0 in
good condition.
~~ ~
1~ 9 T A T I fi T I 0,^„
i
I, Totn1 number of feet in twmeis ^600 a;ot por ft, $15.00
'

I Total number of Peet
ln~ahafts 1000 cost Por ft. $40.00
j
~~I Total number of Peet In drifts 18000 cost r
Por ft $7„>0
1
~~~I Total number of feet in rsises .',600 cost Por ft~$7,00
(I Total nvmb;r oP Poet in de~~olopoment 26200,
l Oor•t Of fuel, avoraeo per month $400.00
j
Cort of .timber, ederago per month $°000.0
~ Oort of et~ol, evOrcg O Per month $100.00
Cost of oil, average per month $100.00
I '
I ~
~ Coot of powder averspe Psr month $17.00.00
IY; ' r
I '~'u
'~,'~ Ooet of trsns ortin mlr~
p g plies to mine $,06 per owt, over tram.