Gilpin observer., 1906-10-11
A Brief Write=Up of the Famous
Mackey Mine.
Other Properties Of this Company Which Include
the Cyrene and Sarah Jane Groups. The
New Mill Nearing It's Completion.

ally the largest and the best developed
of the three groups, consists of eight
full claims, as follows: The Mackey, the
Mackey Extension, the Imperial, the
Amazon, the Bell Boy, the Franklin, the
Cronje and the Amazon placer. This
group is located to the west of A pex
about one mile, on the slope of Califor-
MIA hill, and is reached by road from
Apex and by another road down Elk
creek to its junction with Pine creek,
and hence on down to where the com
panys old mill, assay and general office,
as well as the managers residence stood,
but during the last few months the mana
ger has had his Office and residence moved
to Apex, and the old mill torn down and
moved to the Mackey mine where the
remnants were used in the erection of
the new and beautiful cyanide mill now
nearing its completion. We will de-
scribe the various claims of the Mackey
group as follows:
In the advanced development work of
the Mackey we find the keynote of this,
and the other groups of the Imperial
company. And great as is tie Mackey,
which it has proved itself to be, we find
many indications TO an almost positive
certainty which leads US to believe that
each one of the other claims in this
group, with the same amount of devel-
opment work, will be as great producer.
The Mackey is thoroughly equipped,
consisting of a commodious and substan-
TALLY built shaft house $3.50 feet, a 7x9
two boilers with a capacity of 100 h. p,
air. and hand drills, pumps. automatic
dumping device, ore bins, ore cars, track
and a complete blacksmithing outfit.
The development of the Mackey con-
sists of a shaft 300 feet in depth and will
be sunk to the 800 foot point. AS soon
as this depth is reached a cross-cut tun-
mel will be run TO cut the veins of the
Amazon, Bell Boy, Franklin and Cronje,
four claims recently purchased by this
company, thus atfording ample drain
age, ventilation and transportation facili-
ties for all the properties connecting
with the tunnel. The four veins will be
cut at depths varying from $50 10 600
feet, and levels will be run on each vein
in both directions. Al the 30,foot level
of the Mackey there are 300 feet of
drifts-2I5 feet to the east and % feet
to the west and are in good ore all the
way. In that short distance and at a
depth of only 30 feet, $1,000 worth of
surface ore was taken out. At the $50
foot level drift has been run over 500
feet east aud 10 feet west of the shaft,
with the vein matter averaging from 6
to O., feet wide, about feet of which Is
smelling ore that runs from $500 to
100 per ton in gold, silver and copper,
while in portions of the main vein the
copper alone shows a value of more than
Sl00 per ton. There are about 81 feet
Of milling ore in this vein. While the
above figures represent the average val.
ues throughout the main vein, much
higher assays have been obtained, the
ores sometimes carrying us high as 81
per cent in copper, and the ore has run
to $500 per ton in carload lots.
The management recently uncovered a
high grade copper vein where it was least
expected and which was an agreeable
surprise to them. To the east OF the
main shaft about 10 feet a cross cut was
started through the foot wall and at
about 10 feet from the main vein u three.
foot vein of rich copper ore was encoun.
tered which runs 5000 to the ton in car.
load lots ut the Argo smelter in Denver.
Later this vein was found to intersect
the main vein 10 feet west of the shaft
and still maintained its value OF 800 to
$500 to the ton. A winze was sunk at
this point and the values in the merged
ore bodies showed n most gratifying in.
crease. These values are not only shown
in copper, but in gold and silver as we'll.
Between the main shaft and the mir shaft
and the surface and the $50 foot level,
there are at least 1000 tons OF ore block
cd out on four sides, and this vast re.
serve, based upon the actual average
gross value OF 100 tons shipped from
the Mackey last year, which was s2O.sO
per ton, is worth sl4s, AGO, or to be OK.
tremely conservative, 100000. There
are from 500 to 1000 tons Of milling ore
on tho dump. and fully 300 tons more