The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1907-02-07
YEARS WORK At
COLUMBUS CON.
Character of Ore Mined and
Record Made at the Com
pany'S Mill.
MUCH GROUND OPENED UP
PLANTS AND EQUIPMENT ARE
IMPROVED.

Much interest has attached TO the
operation OF the Columbus Console
dated company at Alta, and much
speculation has existed as to what the
ores were actually worth. what the mill
had been doing and what kind of ore
II was treating. All these matters are
covered i'm the report Of Manager Tony
jacobson. which gives the production
by months and shows what the man
agement is expecting to happen during
the present year as a result of the cam
palgn OF development under way. As
me report, together with the itemized
financial statement is to be issued TO
shareholders in printed form during the
month The Herald quotes only that
portion OF the report of particular in
terest 10 the public in general and min
ing men interested I'm the camp. as
follows:
Mine Operations and DEVELOPMENT.
During the year there has been mined
o,oSO.Z tons of first class ore, which had
according to smelter returns, an aver
Sse moisture Of 81 per cent. OF this
amount there has been settled for by
the smeiter 6.134.6 tons dry weight for
which we received the net sum of 1884. =
2l2O2. giving an average value per ton
OF 1858. There are still on hand at
the mine ESQ tons net weight, which. ac-
cording to mine assays, is worth S65
per ton. There was also mined 10. 299
tons Of milling ore. of a gross value of
sl115 per ton.
There has been run during the year
total Of 1904 feet Of tunnels drifts
and croSscuts; 2S3 feet of shaft sinking
and 0S2 feet OF upraises, making the
total development work 4.124 feet. at
an average cost Of 1869 per foot. This
development work has been very salts
factory and at no time in the mines
past history has it looked more en-
couraging than at the present.
In sinking the No. shaft and drift
ing therefrOm. large bodies OF first
class ore have been opened both on the
200 and 30O-foot levels Some stoping
has been done. but there is still
large reserve on these levels.
After driving the Garfield drift ninety
feet a nice body or first class ore was
Encountered also some ore of a milling
grade At this point a large station
WAS cut. hoist and skip installed and
sinking is now under way. The shaft
is an incline and is down seventy-five
feet being in ore all the way.
From the station the drift continues
along the strike of contact for seventy
five feet. where there is another body
Of first class ore about four feet wide,
the extent OF which is to be deter
mined by future development work
The old Rowland drift has been con-
tinued westerly TO reach the west or
"Frederick" conflict. At n point in this
drift ESQ feet from the main tunnel n
large body Of sulphide shipping ore was
struck which averages thirty Eight
ounces silver nine per cent copper and
an excess IN iron. This is considered
an important development because il
IS at one of the principal lime contacts
Of the district and is about 1.500 feet
westerly from the large ore body de-
veloped by the No. 3 shaft.
Mill Operations.
The mill has run one shift per day
all the year and two shifts per day
part OF the year. During this time It
has handled 1929 tons of crude ore.
with an average gross value of $1115
per ton on mine assays. This ore pro-
duced 3,249.22 tons. wet weight of con-
centrates, which, according to smelter
returns. had an average moisture of IA
per cent OF this amount the smelters
settled for 2.S75.15 tons, dry weight. for
which we received the sum of $91, 1854,
making net average per ton OF S31.69.
There are still on hand at the mine 24o
tons, wet weight. worth $40 per ton on
mine assays. The rate Of concentra-
tion was 40S into 1. and the saving S2.6
per cent
The milling ore reserves have not
been drawn on TO any extent. nearly
enough ore being taken out I'm develop
ment work TO operate the mill. Diff
Guilty In transporting ore TO the railroad
has hindered milling operations at
times during the year.
Four new Whitley tables have been
installed and classification has been
improved. which. with other changes,
enables the mill to make better saw
ing than at any previous time.
Cost Of Milling Reduction.
The cost of milling was si.S1 per ton,
divided as follows:
improvements and construction. sc. q
Supplies 1865. ..................... .2S
Operating ........ .................. .S2
s1a
This Is a reduction OF s122 per ton
compared with the cost of operating the
preceding year.
General improvements.
Needed improvements have been
MADE 90 our equipment as called for
by operations on a larger scale than
heretofore. 4 new unit has been added
TO the power plant at a cost Of S9,0SS.61.
which makes two units now installed.
ice during the past year.
On the S00-foot level an electric pump
OF the plunger pattern has been in
stalled with maximum capacity OF 400
gallons per minute. This pump effects