The Arvada enterprise., 1914-07-16
COLORADO METAL PRODUCTIONIN 1878
TOTAL s544s2ss-PRoDucToN ZINC AND GOLD
SILVER COPPER LEAD INCREASED.
Western Newspaper Union New. Service.

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Washiagton.-The output Of Colora-
do mines during 1913. according to
Charles w. Henderson OF the United
States Geological Survey, was $lS.146,-
GIG In gold. 9.325.255 ounces OF silver,
S7,C2O,3G4 pounds of lead; 1928, ,2G9
pounds of copper. and 1l9,346.429
pounds OF zinc lin terms of spelter ana
zinc In zinc oxide), with total gross
value Of recovered metals Of $35,449,-
1913. as compared with $37,320,9GG In
1912. decrease In value for 1913 of
$l,S71 ,6GS, or per cent. There was
il decrease OF $iil,G4G in gold an in
crease OF 1,11S,lS5 ounces OF silver, an
increase of l2.37S,097 pounds of lead,
an increase of 1896 pounds of cop
per. and decrease OF 12.S7G,3S3
pounds of zinc. The heaviest decrease
in value was $2.439,974 for zinc, but
there were increases OF $5S2, OBJ for sill
yer and $4G9,394 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 otl,er states. inncluding
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
Mldvale. and Murray plants In Utah
Cya:.ide precipitates and ore were
shipped from Colorado to Omaha. The
United States Zinc Companys mag
netic plant and zinc smelter at Pueblo
was operated steadily on zinc.lead
ores from various counties In Colo
RADIO. 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 us was the EN-
pire Zinc Conpanys magnetic separa
ticn plant. at Canon City, both treat
fng chiefly Lealville leadzinc ores
The Sutton. Steele and Steele dry con
centration and static electric separa-
tion plant was operated throughout
the year ON many tests lots and later
OIL custom ore purchased from various
districts In tie state.
Cripple Creek produced co per cent
of the total gold yield of the state.
with a yield of $lO,9O5.OO3, as com.
pared with ll,OOS,3G2 in 1912. The
output for II months from Cripple
Creek seemed to indicate production
for II months of $ll,lsi,o00. but the
severe storm Of December 18th so Grip
Piled 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 a decreased
tonnage of smelling ore. The Roose
welt tunnel continued to lower the wa
ter level gradually. In the Vindlca-
tor and Golden Cycle mines electric
pumps were installed. Lower levels
were opened In various properties.
The Golden Cycle and Portland cy-
nnida'ion mills at Colorado Springs
wcr operated steadily. The Portland.
Stratton's Independence. Ajax. and
several other cyanidation plants In
the district were operated continu-
ously. The Standard chlorination and
Cyanidation plant at Colorado City
was idle, but the Union cyanidation
plant. at Florence. was operated part
of the year on old tailings. The pub
lie report Of the Portland company for
1913 shows n total OF l1S,lG2 tons OF
an average assay value of s295 per
ton was treated at the Portland com.
pany's Victor mill, with satisfactory
net earnings. The Stratton's lnde.
pendenoc report shows recovery or
7S.iS per cent on ore averaging S3.07G
per ton. the cost OF working the mill
being si.i6 per ton.
Lake county tchiefly Leadville. but
for 1915 including the new I.acka.
wanna district. In addition to Big En-.
Glish gulch and Sugar Loaf districts,
produced sl.023.G3i in gold. 3.iO0.SlS
ounces OF silver (Which represents 3G
per cent OF the state YIELD i.923.9S7