Bisbee daily review. [volume] (Bisbee, Ariz.) 1901-1971, 1913-03-23

COLE SHAFT-The development
work at the Cole has been confined
exclusively 10 the big ore body on the
Granville claim between the 1000
foot level and the S00-foot level. On
the S0O-foot level crosscuts were run
from the top of raise from the 900
| foot level. which disclosed leached
material and limestone.
On the 9OO-foot level. a new work
| ing drift was run in the waste north
west OF this ere body, and from this
extraction drifts were made into the
ore at various points. Prospect drifts
| we're extended north and west from
this drift. which found ore.
From No. S raise. half way between
the 900 and S0Ofoot levels q sub-drift
was run northwesterly which cut 100
feet OF oxide ore. this being the up
ward extension OF the ore from the
/ a1u-foot level.
At the end of the year. a cross-cut
was. started on the 11O0-fUot level 10
connect with the old 1l00-foot level
| workings fthe Cole. This cross-cpt
starts of OF our chute, connecting the
Cole slopes with the 1350-foot level
OF the Oliver. from which the Cole
i ore is extracted. 1t will, when COM
pleted, enable us to do development
work on the 1i00-foot level, Cole.
BRIGGS SHAFT-The work done
on the l30O-foot level of the Briggs
shaft leads us 10 think that We have
partially developed one OF. the larg-
est bodies of sulphide ore yet found
in Bisbee.
The ore found late last year in No.
% crosscut on the Rathmoon claim.
has been extended southerly into the
Nellie claim for a total distance or
500 feet. The average height of this
pre- above the 1SO0-foot,s level has been
found by raising at various points,
TO be Just over 80 feet. IL is irregular
in width. but must average 40 feet.
The grade of copper varies from 2,c
to 3OGf, averaging approximately ~
South of this ore body, with the
same general strike, a second body
of sulDhide ore 420 feet long, but OF
narrow width has been developed:
the maximum cross-cut ia this ore
being 25 feet, and the average width
being about 10 feet. Raises in this ore
indicate height of ore above the 1900
foot level not to exceed 20 feet
There Is only 10 feet Of ground be
tween these ore bodies, and the
chances are they will ultimately con
meet at some point. The probability OF
ore on the 14eO-fOot level under these
ore bodies is excellent.
A drift east into the Oakland claim.
is being pushed. and also drift into
the south end of the Nellie claim on
the l3OO-foot level. Drifts have also
been run south on the 1900 and 1900
foot levels for a few hundred feet. but
this work had to be temporarily aoan-
doned when work Of sinking he smart
from the 1900 to the l50t-foot Level
was started.
In December. the Briggs shaft was
nut in commission for hosting us
own ore, and since that time 4oo
tons of ore per day have been shipped
through that shaft.
JUNCTION SHAFT-Since Deeem-
her I. the Junction has been aDah
doned as a s1oisting shaft. ana
crew has been steadily at work hhihe
the shaft with concrete. pumping
operations continue there as usual
Meanwhile. the Junction ere Is De
ing hoisted through the Hoatsoh
shaft. and mining continued N the
priucipaI slopes During the year d
iittIe drifting was done Oh the 1900
font level south Of the SHAFT. but only
leached ground was founG- A UNI,
on the i300-foot level was eSteiue ~
into the Rathmoon claim, ana VII
eventually connect with the Brisss
workings. =.
Several eross-euts on the 1So0-foot
level we're driven into the ba.on
Rouge claim. Lsached ground was eut
in All these openings and small booy
of good sulphide ore was found nesr
the east side line OF the Hardscraooie
claim. ,s. ,s
On the 14O0-foot level. drift wa
extended southerly into the Briggs
territory which cut considerable loe
Grade sulphide ore also 80 feet OF
soct level of the Priegs shaft. but q
high grade ore bothon the Rathn'ooh
claim. This latter ore lies almost
beneath the neg ere found on the
fs00O.foot level OF the Briggs SHAT
hut two hundred feet north thereof
| A raise was put up through THIS orr
Tor II feet when il passed into
waste. This ore was Of fair graae; oh
the i4O0-foot level. 60 feet OF suiphlee
ore of good grade was cur IA ehs
southwest corner Of the orsnoha
claim.
\ HOkTSON SHAFT-Peri1aps:f the
most important development during
| the year, at the Hoatson. was the eN-
plorstion below the 1900 foot level or
the big oxide ore body on the east
side of the Del Norte claim, Il was
found that this ore extended almost