Gilpin observer., 1914-01-01

Washington.-The output Of Colo
RADIO mines for eleven months Of 1918
with an estimate for December, ac-
cording to preliminary figures by
Charles w. Henderson, Of the United
States Geological Survey, shows pro-
duction of $18,395, 900 in gold, 9,160,000
ounces of silver, S5,500,000 pounds Of
lead. 7,G34.0o0 of copper. and 129.6s0.-
900 pounds of zinc Tin terms OF spell
ter and zinc in zinc oxide). with to-
tai value Of $36,200, 900. compared with
t37,320.996 in 1912. This shows de-
crease of 100000 in gold, an increase
Of 100000 ounces Of silver, an in
crease Of 10.300.000 pounds OF lead, an
increase of 100000 pounds of copper
and a decrease Of 2,640,000 pounds of
sine. The heaviest decrease in value
was $1.7o2.000 for zinc, and there were
increases OF $4,000 for silver and
$4,000 for lead.
The tonnage treated by the Globe.
Leadville, Pueblo and Salida smelters
allowed an appreciable increase for
the year. An increased tonnage was
slso shipped to the Murray, Garfield
and Midvale plants in Utah. Cyanide
precipitates we're shipped to Omaha.
The United States Zinc Company's
magnetic plant and smelter at Pueblo
was operated steadily.
The output of Cripple Creek
showed an increase of $4,000 in gold.
The Roosevelt tunnel continued to low
er the water level gradually. In the
electric pumps were installed. Lower
levels were opened during the year.
The Golden Cycle and Portland cya-
nidation mills at Colorado Springs
were operated steadily, with an in
creased output. Cyanide mills in the
district also made an increased yield
The Standard chlorination and cyanid-
alton plant at Colorado City was idle,
but the Union cyanidation plant at
Florence was operated part of the year
on Old tailings. The tonnage Of smelt-
ing ore from Cripple Creek decreased
slfghtly.
Value Of LeadvilIe Output Declines.
Lake county Chiefly Leadville. but
for 1918 including the Lackawanna
Gulch district) produced $9S1,416 in
gold, 100000 ounces Of silver, 2.000,-
900 pounds Of copper, 2s.000,000
pounds of lead and 9S,000,000 pounds
OF zinc. with total value Of 100000
900, as against 81, ,7s0.131 in 1912. The
output Of zinc carbonate was 10000
tons Of approximately 27 per cent zinc.
against 142,7S2 tons Of 1872 per cent
zinc in 1912. The production Of zinc
sulphide shipped varied little from the
104.14Ss tons of "a per cent zinc in
1912. The zinc carbonate ore was
treated at smelters in Kansas. Okla
homa, and Wisconsin and the zinc sui
phide was treated at the Empire Zinc
Company's magnetic separation plant
at Canon City, at the Western Chem
ical Company's wet concentration and
magnetic separation plant at Denver,
at the United States Zinc Company's
magnetic plant and smelter at Pueblo,
and at the zinc oxide plant at Coffey-
vile, Kans.
The San Juan region Of Dolores, La
Plata, Ouray. San Juan and San Mi
guel counties produced $4,116.000 in
gold, 2,S47.OOO ounces of silver. 21,165,-
900 pounds of lead, 3.63O.00O pounds
OF copper and approximately S,0O0.-
900 pounds Of zinc, compared with $4.-
115,345 in gold, 2,562,O96 ounces Of
silver, 2O,752.156 pounds Of lead, 81
000,173 pounds OF copper and 6.375.O73
pounds of zinc in 1912. There was an
increase for gold Of $1,000 in Dolores.
$I63. 900 in La Plata, $4,000 In San
Juan; and decrease Of $4,000 in
Ouray and Of $224.000 in San Miguel
county. There was an increase for sill
yer of 100000 ounces in Dolores. 2oO,-
900 in San Juan. and 1000 In La
Plata, while there was decrease OF
$4,000 ounces in San Miguel county.
Dolores county (Rico) made a large