The Julesburg grit-advocate., 1913-09-11
METALS IN COLORADO
PRODUCTION IN 1919 osaaAAoo
GREATER THAN IN 1911.
lorOe Increase Shown In ZlNe. lsad
sd Silver Output. But Decrease
In Copper and Gold.

pef. lead. and zinc recovered from
plaoers. from gold-silver bullion, and
from ore sold or treated in 1912. vas
eo7.S20,sG6. as compared with 7.4ls.-
Els In 1871. an increase In value for
1913 OF si.s02.74s. or Is per cent. &C
oosding to Charles w. Henderson. Of
the United States Geological Survey.
These figures are compiled and tabu-
lated strictly as . mine report and
With reference to the locality of each
Individual mine. and not with refer
ence to the locality OF the shipping
point OF the product.
The production of gold in Colorado
In 1912 showed . decrease in value OF
e413.413; OF silver. an increase OF $751;
e03 ounces; of copper. q decrease Of
S17.lS5 pounds: OF lead. an increase OF
s.6S2.97S pounds: and Of zinc (figured
- spelter and zinc In zinc oxide) an
Increase of 37.615.356 pounds. With
Increased market prices for silver.
copper. and zinc. there were increases
In value of tl69.644 for copper. t1.l65..
asa for silver. 3250.334 for lead. and
S3.730.749 for zinc.
Cripple Creek Principal Gold Pro-
Queer.
The output Of Cripple Greek in
1918 showed an increase OF S445.709
In gold. the production being $11.0Os..
362. Or 50 per cent of the total gold
yield of the state. The shipments Of
medium-grade ore from Cripple Creek
to the custom milling plants showed a
small decrease. but the shipments OF
the higher-grade ores to smelters
showed a small increase and also an
increase In Its average content of gold.
- well as heavy increase In low
grade dump and mine ores sent to
cyanide and cyanide-concentratio
mills in the district. and also an in
crease in amounts recovered from old
tailings, shines. and "clean up" of
closed mills. In 1912 cyanidation COM
pletely superseded chlorination In the
treatment Of Cripple Creek ore. The
San Juan region, In Dolores. La Plata.
Ouray. San Juan. and San Miguel coun.
ties. showed decrease of 100000 In
output of gold. Ouray county showing
the largest decrease. There was also
. decrease in output from La Plata
COUNTY, but an increase from San Juan
county Other counties showing an
increased output of gold were Chaffee.
Gilpin, Eagle. Park. and Summit The
placer output Of gold was $423.SS5. an
increase of s104.12s over the output
of 1911.
Leadviils Leads In Output Of silver.
Leadvllle Lake county continued to
be the chief silver-producing district
of Colorado, its output being 3,000.397
ounces. which represent 81 per cent
Of the state yield. The chief silver
producing counties in Colorado In 1912
were Lake. San Miguel, San Juan, Min
era. Ouray, Pitkin. Clear Greek, and
Gipin, In the order named; these coun-
ties combined furnished SO per cent
Of the total state production. Notable
increases in output Of silver were
shown In San Juan, Mineral. and San
Miguel counties. and notable de-
creases In La Plata and Clear Creek.
Decrease in Copper, Increase In Lead.
Copper production in Colorado de-
creased from s.O24.4ss pounds in 1911
to 7.107.3O3 pounds in 1912. Lake,
San Juan, San Miguel. Dolores.
Clear Creek. and Ouray counties.
in the order named, were the
largest producers, Lake county
alone furnishing 29 per cent.
San Jaun, Is; Gilpin. IA; and the
seven counties combined. 92 per cent
The production of lead in Colorado
increased from 69.679.2s9 pounds in
1911 to 75,242.267 pounds in 1912.
Lake county ranked first. and was fol-
lowed by San Juan. Pitkin, San Mi
guel, Mineral, Summit, and Clear
Creek counties, in the order named.
Zinc Output 100000 Lbs. Greater.
The zinc output of Colorado lin
terms OF spelter and zinc in zinc
oXide) was 182,222,s12 pounds in 1912
as compared with 94,607,456 pounds In
1911, an increase for 1912 of 37,615.-
S56 pounds in quantity and of $780,
7i9 In value. Lake county, with an in
crease for the year of 34,335,337
pounds. furnished 05,945,7S3 pounds
or so per cent Of the state yield The
output Of zinc carbonate ore from
Leadville was 142,7s2 tons of 292 per
cent zinc. against s3.9O5 tons OF 81
per cent zinc in 1911.
Increased production of zinc was al
so made in Chaffee, Clear Creek
Dolores. Eagle, Fremont, Ouray, Pit
kin, Saguache. San Juan. and Sum-
nit counties, and appreciable de-
creases were made in Mineral, Park,
and San Miguel counties Zinc pro-
duction In concentrates amounted to
46,o53,954 pounds, and in crude ore to
SG,l6S,s58 pounds.
The zinc sulphide ore shipped In
creased from 1876 tons OF 233 per
III, t.