The Idaho Springs siftings-news., 1914-07-18
COLORADO METAL PRODUCTIONIN 1918
TOTAL OUTPUT ss544s2ss-PRoDucToN
CREASED, BUT SILVER COPPER
tester. Newspaper Union New. Service.


Washiagton.-The output Of Colora-
do mines during 1913. according to
Charles w. Henderson OF the United
States Geological Survey. was $ls,146.-
S16 in gold. 9.325.255 ounces of silver,
S7.620,364 pounds Of lead: 1928 ,26s
pounds of copper. and 1886, ,429
pounds Of zinc Tin terms Of spelter and
zinc in zinc oxide). with a total gross
value Of recovered metals of s35.449.-
. 2ss. as compared with s37 966 in
1912. a decrease in value for 1913 Of
$1,s71 .66s. or per cent. There was
decrease of $4i1.646 in gold, an In
crease of 1.113.ls5 ounces of silver. an
increase of 12.37s,o97 pounds Of lead
an increase of 190.966 pounds OF cop
per. and decrease of 12,S76,3S3
pounds of zinc. The heaviest decrease
In value was s2.4S9,974 for zinc. but
there were increases OF $5S2, ,031 for sill
yer and s469,394 for lead.
The tonnage treated by the Globe
Leadville. Pueblo. Durango and Salida
smelters from British Columbia, Can
ada. Colorado. Idaho. South Dakota,
Utah, and other states. inncluding a
considerable tonnage of zinc residues
from Kansas and Oklahoma zinc smell
ters, showed a small increase for the
year. An increased tonnage from Col
orado was shipped to the Garfield
Midvale, and Murray plants in Utah
Cyaaide precipitates and ore were
shipped from Colorado to Omaha The
United States Zinc Company's mag
to V.ln ~ De- L.
was operated steadily on zinc-lead
ores from various counties in Colo
rado, and also from Arizona, Idaho.
Montana, Nevada, and Utah The
Western Chemical Company's sui
phuric acid. magnetic separation, and
wet concentration plant, at Denver,
was operated steadily, as was the En-
pire Zinc Conpany's magnetic separa-
ticn plant, at Canon City, both treat
ing chiefly Leadville lead-zinc ores.
The Sutton, Steele and Steele dry con-
centrauon and static electric separa-
tion plant was operated throughout
the year on many tests lots and later
Oh custom ore purchased from various
districts in TIE state.
Cripple Greek produced GO per cent
OF the total gold yield of the state,
with a yield of s1o,905.003. as COM
pared with $ll,00S,362 in 1912. The
output for II months from Cripple
Greek seemed to indicate a production
for 12 months of $l1,1S4.0 900. but the
severe storm of December 4th SO Grip
pied transportation facilities that the
December yield fell off heavily. There
was an increased yield of gold bullion
from custom cyanidation plants at
Colorado Springs and from the cyan
idaticn mills in the district, the de-
creased yield being due to decreased
tonnage of smelling ore. The Roose-
velt tunnel continued to lower the wa
ter level gradually. In the Vindica-
tor and Golden Cycle mines electric
pumps were installed. Lower levels
were opened in various properties.
The Golden Cycle and Portland cy-
anidation mills at Colorado Springs
wer operated steadily. The Portland
Stratton's Independence, Ajax, and
several other cyanidation plants in
the district were operated continu-
ously. The Standard chlorination and
was idle. but the Union cvanidation
plant, at Florence, was operated part
of the year on old tailings. The pub
lie report of the Portland company for
1913 shows total of 17S,162 tons Of
an average assay value of $2.95 per
ton was treated at the Portland com
pany's Victor mill, with satisfactory
net earnings. The Stratton's Inde
pendence report shows a recovery OF
7S.4S per cent on ore avera aging S3.O7G
per ton, the cost of working the mill
being S1.46 per ton.
Lake county Chiefly Leadville, but
for 1913 including the new Lacka-
wanna district. in addition to Big En-
glish gulch and Sugar Loaf districts)
produced $1,O23,631 in gold, 3,40O,31S
ounces of silver (Which represents sc
per cent of the state yield. 1,923,987