The Goldfield news and weekly tribune. [volume] (Goldfield, Nev.) 1911-1947, 1915-07-17
VALUE OF %COLORAOC'S
1914 METAL OUTPUT

The output of Colorado mines dur
ing 1914, according to figures COM
piled by Charles w. Henderson of the
United States geological survey, was
$~19,SS3,105 in gold, S,796,065 ounc-
es of silver, 74,211,S9S pounds of
lead, 6,639,173 pounds of copper and
96,774,954 pounds of zinc Tin terms
of spelter and zinc in zinc oxide,
with a total value of $33,460,126,
compared with $1S,146,916 in gold,
~9,325,255 ounces of silver, $751;
773 pounds of lead, ~7,227,S26 pounds
of copper and 119,346,429 pounds of
zinc, with a total value of ~$35,450,-
5S5 in 1913. This shows an increase
of $1,736,1S9 in gold, and decreases
of 529,190 ounce in silver, 1866
SIS pounds in lead, 5SS,653 pounds
in copper and 22,571 pounds in zinc.
In addition to the decrease in guam
titles of silver and the base METALS,
the falling off in average value for
these metals caused a decrease in
value of $76S,230 for silver, $973,-
23S for lead and $1,747,S77 for zinc.
The Globe, Leadville, Puebla, Du-
range and Salida smelters were oper-
ated continuously on ore from Brit
ish Columbia, Colorado, Canada, Ida
no, South Dakota and other states,
including a considerable tonnage of
zinc residues from Kansas and Ok
lahoma zinc smelters. The United
States Zinz company's smelter at
Pueblo was operated steadily on
zinc-lead ores from several counties
in Colorado and also from Arizona,
Idaho, Nevada and Utah. The cop
per-matting plant at Ouray was oper-
ated steadily during the ,ear and
construction work on a 2OO-ton addi-
ton to the plant was completed early
in 1915. The Western Chemical
company's sulphuric acid, magnetic
separation and wet concentration
plant at Denver was operated stead
lily, as was the Empire Zinc company's
magnetic separation plant at Canon
City, both treating chiefly Leadville
zinc-lead sulphide ores. The SUIT
ton, Steele & Steele dry c%oncentra-
ton and static electric separation
plant at Denver was operated during
the year on several classes of ore
from different districts of the state,
but was closed in December. Cyan
ide precipitates and copper ore were
shipped to Omaha and copper ore and
copper matte were shipped to Utah
plants.
Cripple Creek produced so per cent
of the total gold yield of the state,
with a yield of $11 ,996,116, as COM
pared with $1O,9O5,0 O3 in 1913. This
is the largest production for any one
year since 1908. Cripple Creek, to
the end of 1914, has produced $685.
1868 in gold. The Roosevelt tun-
mel continued to lower the water lev
ell gradually, except in the Vindicator
and Golden Cycle mines, where cleo
trio pumps, installed in 1913, are
used. In July, 1914, preparations
were completed for continuing the
tunnel to the Vindicator-Golden Cy-
Gle territory-an addition of 1O,250
feet-and from August 8 to Novem-
Der 4, when the FL Paso plant was
destroyed by fire and the work in the
tunnel stopped, the heading had been
advanced 27O feet. Work was re-
sumed March 2, 1915. The water
flow from the tunnel between July
/, 1914, and March 1, 1915, varied
from 1900 to S,213 gallons a min
ute. From the collars of the shafts
the depth of ground to the tunnel
will be 2,100 feet at the Vindicator
No. 1, 1885 feet at the Golden Cycle,
2,145 feet at the Portland No. 2,
1,645 feet at the Elkton and 2,645
feet at the American Eagles.
The Golden Cycle and Portland
were operated steadily with a con-
siderably increased output. Cyanide
mills in the district also made an in
creased yield. The Union cyanida-
ton plant at Florence and the U. S.
Reduction & Refining company's cho-
rination and cy~anidation plants at
Colorado City were idle. An attempt
was made to cyanide the old dump CT
the Metallic Co. at Florence. The
tonnage of concentrates and smelt-
ing ore from Cripple Creek increased
appreciably.