Gilpin observer., 1915-02-18
AMONG THE MINES
MODERN COLORADO CARR MILL

The new Colorado Carr mill at
Black Hawk, that Manager Arthur
Most has been constructing for the
2ast few months, is now ready for
the treatment of custom ore, it hav-
1ag successfully mastered all the in
t-icate problems incident to new val
ue-saving methods. The Observer,
ever on the alert for trusty inform
alton regarding the welfare OF the
county, dispatched their mining re-
porter, to the scene for personal in
vestigation
This new and up-to-date plant is
gov running steadily with three
sight-hour shifts, and judging from
the results obtained by shippers of
Low grade ores who have already had
test-lots made, will hereafter remain
IN operation to not only declare div
Lends for its owners, but greatly
benefit those who can now realize a
profit en- their low grade ores. The
mill is so located that it can be sup
piled with ores hauled by wagons as
yell as being connected with the Gill
pin Tramway that connects with all
me principal mines in the Nevada
vile and Russell Gulch districts, and
lands the ore directly into their bins
thus saving exorbitant transportation
charges. The mill is equipped with
silver plated amalgamating coppers,
,1 1,a chi f.,I,z
ton instead of straight concentration
< 40 to 30 mesh screen Is used, there
by assuring an ideal pulp for plating.
Dumping tables of tie latest design,
laving wide table surface, handle
the pulp from the plates. and makes
2 product of the courser uSlphides,
1he tailings being elevated and pass
ing over two Whitley tables of the
latest pattern. Tests from these ta-
oles show that from so to $50 of
ore in shines are saved, and the res
due, or over, carry but little values
The mill is SO arranged that if the
shipper wishes straight concentration
the pulp goes from the humping Ia
Z is made into two products, the
coarse and the fine, 1t being divided
in the feed. This mill is so ar
ranged that different tests can be
made to correspond with the char
ecter of ore to be treated. and we
look for great results from this mill
n the treatment of our millions of
tons of low grade ores. test was
made Of a cord of ore from the Old
Town dump in Russell Gulch that ran
only twenty one-hundredths or. gold
20 the ton in the crude, Tor four dol
Lars per ton,) and after paying all
expense for hauling, treating and
smelter charges, returned a check of
over Sc to the producer. Another
test of seven cords of low grade ores
returned a retort of IA ounces gold
from plates. beside several tons of
concentrates that have not as yet
been settled for. Another test run
6s now being made that plates we'll
in gold, but results have not been OBJ
Gained at time of going to press.
With the advent of this class of
mills, and the infusion Of practical
and energetic blood into the county
from the great gold fields OF Califor-
mia, Nevada, Utah and Idaho. who
have learned of our marvelously rich
5issure gold veins that underlie our
bleak and barren hills, the pessimist
who has for the last decade been
quietly sitting upon the lid of these
treasure vaults with the key to un-
lock this vast storehouse of wealth
buried deep in his cynical breast, will
be relegated to the rear, and the
county repopulated with class whose
keen concertion of the county's fu-
ture Is abreast of the times.