The Arvada enterprise., 1918-01-17
The Golden Cycle cyanidation mill.

The Golden Cycle cyanidation mill.
at Colorado City, and the Portland
cyanidation mill. at Colorado Springs
and Victor, were operated steadily.
The yield from the small cyanide
plants of the Cripple Creek district
was not SO large as usual and the ship.
ments of smelling ore directly to
smelters fell off considerably.
Lake County. chiefly Leadville, but
including also the Lackawapna Gulch.
Sugar Loaf, st. kevin and the Wort.
man lode districts and the Arkansas
River dredge district. produced ST.
2Os.O00 in gold. 2,24O.OO0 ounces of
silver, 2O.00o,0O0 pounds of lead, q
$4,000 pounds Of copper. and 69,500,.
600 pounds Of zinc. having a total
value OF $10,700,000. against $1.720..
440 in gold. 1881, ,2S1 ounces OF silver.
1921 .675 pounds Of copper. 21.7l9,392
pounds Of lead, and 76.785,567 pounds
OF zinc, having total value OF $l6.-
OS2,O59. in 1916. Shipments Of man.
ganese-iron ore. manganese-silver
fluxing ore. lead carbonate, and zinc
carbonate ores continued In increas-
ing quantities from the Downtown dis.
trict, unwatered in 1916. Some zinc
carbonate and zinc sulphide ores were
shipped from the Fryer Hill district,
also unwatered in 1916, and consider
able iron-sulphide ores were shipped
from the unwatered Carbonate Hill
district The output Of zinc carbon
ate from the Leadville district de.
creased heavily. The output Of 3inc
carbonate was 68.5OO tons Of 1876 per
cent, as compared with 85.613 tons
of 21.52 per cent. in 1916. The zinc
sulphide smelling and concentrating
ore was 10000 tons Of 21.7 per cent,
against 147.295 tons OF 20.96 per cent
In 1916. The Derry Ranch dredge, be-
low Malta, continued operations dur
ing the year.
The San Juan region OF Dolores.
La Plata, Ouray, San Juan and San
Miguel counties produced $2.5SS. 900 in
gold, 2.556.O0O ounces Of silver. 20.-
$4,000 pounds of lead. 3.745.00O
pounds of copper and 100000 pounds
Of zinc. valued in all at S8,10O.OOO
against $3.O41.275 in gold. 2.224.311
ounces Of silver, 16.345.76S pounds Of
lead. 3,072.1s9 pounds of copper. and
5.364, 4,2O9 pounds of zinc. with total
value Of $7,1O7.294 In 1916. The San
Miguel County mills maintained their
production OF gold, which was about
&2.000.OOO. and increased their produc-
ton Of silver to over 100000 ounces.
but considerable quantities Of the ore
treated in these mills came from oper.
ations in Ouray county along the
strike Of the veins.
Boulder. Gilpin and Clear Greek
counties produced 3S0S.0O0 In gold.
956,OOO ounces Of silver. 100000
pounds of copper. $3.50 .0Os pounds Of
lead, and 100000 pounds Of zinc. as
compared with Sl.001.4 in gold.
Ss1,5lS ounces Of silver. 1.243.75G
pounds OF copper. 6.6Sl 1892 pounds o.
lead and 2.572.b76 pounds Of zinc in
1916. Boulder county produced $780,.
900 less gold and 10000 less silver.
also less copper and lead. Clear Creek
| CO04A&B ~40GAeSoe0 10 V0&Vok VI
lead. copper and zinc. but decreased
considerably its output Of gold. The
production OF gold in 0ilpin county
there was an increase In the output
Of lead. and for the first time in years
there was an output Of zinc.
In Chaffee county the output Of
gold. lead. copper and zinc fell off.
but the output Of silver increased.
The output of Pitkin county (Aspen)
WAS $4,000 ounces OF silver and 49,.
$780, 900 pounds Of lead. an increase Of
1900 ounces Of silver. but . decrease
Of nearly 1000. 900 pounds Of lead. Tha
output OF zinc from this county. how
ever. increased approximately 30O.'
900 pounds.
The production Of Creede (Mineral
county, fell off considerably. as did
that OF Gunnison county.
Mining was very active at Red Cliff,
Eagle county. though tho yield OF
zinc was somewhat less than in 1916.
Some shipments were made from the
Brush Greek district.
The output from both lode and plac.
or mines in Park county decreased.
Summit county produced SG23.0O0 in
gold. $4,000 ounces OF silver. 100000
pounds Of lead. 10000 pounds tof cop.
per, and 10000. 900 pounds Of zinc. ~
compared with S673.s9l In gold. l2o..
2O7 ounces OF silver. 1851 pounds OF
copper. l.Css.G37 pounds Of lead. and
l3.s40,sls pounds Of zinc In 1916.
The. output from the mines Of Gus.
ter county was the largest for several
years. and there was also . consider
ably Increased production from the
Kerbes Creek district Of Saguachs
county.