Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1904-04-28
President Of This Young Bonanza
Tells the Michigan Shareholders
What He Is Doing at Alta.
CONSTRUCTION OF NEW MILL.
Will Commence as Soon as Possible
Figures on Cost of Production
Crude Ore Shipments.

lumbus Consolidated Mining company
Is In the copper country of Michigan
mingllng with the shareholders OF the
big Alta property located there, Of
which there is goodly number.
a few days ago the Mining Gazette OF
Houghton contained an interview with
Mr. Jacobsen, and, in comprehensive
way, he told just what is being done at
the young bonanza which, the mana
ger declares, will be placed In the col
umn Of dividend paying mines before
the close Of the present year.
1t was explained that the principal
point Of attack in the develop
ment Of the Columbus Consolidated
has been through the Columbus tunnel.
This Is driven north by east as a cross
cut for 1900 feet through country rock.
10 q point where 1t intersects the
Braine fssure Then II turns an acute
angle and drifts west on the fissure
until It intersects the contact against
which the very high values are massed
and what Is known as the Bonanza
stope has been opened. Drifting on this
contact has been carried on with the
most satisfactory results. The drift
on the fssure also carried profitable
milling ore practically throughout its
entire length.
The contact which crosses the
Braine fissure dips TO the east, There
fore by sinking vertically from a point
In the tunnel east Of the contact,
win2e would intersect the contact at
depth. This course OF development has
been undertaken. The Wine starts
about 40 feet east OF the contact and Is
now down 60 feet, II Is calculated that
the contact will be opened in about 50
feet more of sinking.
The value OF the ore has shown
constant Increase with depth In the
Wine. The last Is feet has been In
solid ore. The assays from the bot
tom at present show 10 per cent cop
per, IA ounces Of silver and 81 In gold
TO the ton. This shows that an ore
body exists whose values are much
greater than was originally calculated.
From all indications, the richest and
biggest ore bodies Of the Columbus are
yet to be opened,
The drift on the Braine flssure has
been carried westward, past the con-
tact for 300 feet. AT that point II
turns into the country rock and be-
comes crosscut once more, parallel
ing the first crosscut which intersected
the flssure, about 1000 feet away.
This present crosscut is driving on the
strike line Of the Rowland tunnel,
with which II will connect In about
two months. The Rowland tunnel Is
driving IN from the mountain side at
q point over 1000 feet west Of the
Columbus tunnel 1t has already been
carried In about 700 feet. There re-
mains about 800 feet 10 connect It with
the crosscut now driving out from the
Braine assure. This achievement will
provide ventilation and safety for the
miners as we'll as facilitating the oper-
atoms OF the property. The mill will
be built at the portal Of the Rowland
tunnel and all concentrating ore will be
trammed out through that course, the
high grade ore coming through the Col
umbus tunnel.
The erection Of the mill will begin
on May /, as 1t Is calculated that the
snow will be sufficiently cleared by
that time TO permit the work The en-
gineera say they can complete this
work In 60 days II no obstacles arise,
but the management Is calculating on
80 days after the construction begins
as the time when the mill will be
ready for service. In the meanwhile,
development is progressing In a
healthy manner and not pound OF
ore is being stopped. A large stock
pile Of concentrating ore has accum-
uated from the development, how
ever, IN addition to the high grade orc
which has been forwarded 70 the smelt'
er.
The management is figuring on the
concentrating ore running $40 ton,
which viii give value OF $1,000 to the
100 tons treated daily. The costs are
figured al 81 ton, including ever
thing, from the mine 20 the smelter,
This leaves a profit Of SO a ton or $500
net from the mill alone.
In addition 10 this, there Is the profit
on the smelling ore, which VIII be
selected by hand from the mine run
as II goes 10 the mill. This VIII be
variable quantity upon which II IL
impossible 10 make n satisfactory es-
innate. The estimates on the concen-
tratIng ore are made on the lowest
grade OF material now In the stock
piles, and are looked upon as en-
tirely conservative. The object of the
company will be 10 mine for concen-
tratng ore and not for shipping ore,
Whatever shipping ore Is forwarded
will. be what IL selected from the ma
terial on It's way TO the mill, and which
is considered 10 be too high a grade
TO be concentrated. This VIII be thrown
out and sent to the smelter without
treatment
As already stated, there has not
been any stopping done, But the Slopes
have been opened, raises put IN, sub
levels run, and everything Is IN prime
condition for operations as quickly
az the mill is ready. The present ship
ments Of smelling ore, culed from the
material which comes from develop
ment alone, Is sufficient TO take care
Of the actual mining operations de-
spite the fact that the transportation
Of 16 miles necessltates hauling II four
miles by sled over wretched snow
roads and then transferring 20 wag-
ons for the remaining II miles, after
which 1t Is loaded TO cars,
As quickly as the mill Is completed
the heavy construction account will DO
over. From that time forth the mine
is expected TO be on n paying basis,
which viii soon yield sufficient sur.
plus TO put II on sound financial
footing, after which II will be able to
return profits to the stockholders
There win be no important new de-
yeopment work undertaken until af-
ter that period natures IL Is contem-
plated, however, as soon as the mine
ls In position to assume the UNDER