MINEBK00457

• County: Boulder
• Volume: 13
• Document: Inspectr
• Suffix: A

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O R E S &, ;0 R E~. ;B 0 D:I E S- Contin.
., .The ,oharaGter of vein tilling is ••porphyry._and quarts
and;the meta],s are,gold. silvex, send, popper, sins and born-
Hite, with silver gredominating.:ninety per oent.ot.the..vein;
tilling.,is of a,smelting nature, the.balanae being a oonoen-
trating ore but of a very lqw value. r ,
$IIRFA CE, P1.6H T .
• ~ horee,and.whim.ie used for holating.:The shaft house
1s a trame,building,~16' x.32' 1n size. The smith's shop and_
the ohenging.houae are in the same building that la situate ~:
-over tho shalt.
The oollar,ot the shaft is of autlioient height to pre-~
vent persona from tripping and falling in the abaft and the
oollar of the shaft is provided with a good and eultiolent
door to prevent material Prom falling in the shaft while dump-
ing. IIo proteotion ag8inat,tire has boon provided. Only one'-.
ore bin of ten tone oapaoity has been provided. ,
E X P L 0 3 I V E S.
Gelatine - d0~o and 60q'o - povrder; German lneoloid fuse;
b-X.oapa and wooden tamping bare are omployod. Laploaives in
.exoeee of one dny'e supply are-not stored underground. ,
The average amount of explosives kept in storage is 100#:
i
Thin is stored in a frame, iron-olnd magasiae eituata b0' eout}i
of the shaft house. and used for this purpose only.
The,devloe for thawing powder is a tin tan1: heated by
means of bot water.
BI1lI AO da b~IAL ~ 1dETK0 DS
the main ppoaing !e a shaft bb' in depth snd sunk on ~_
the Groat Conaty vein. At F depth of 60' 8 drift is rna west
800' and some atoping has been done in this drift. L mall
aaonat of ors, with as average value of ~O.per ton, !e pro-
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