Gilpin observer., 1909-12-30
THE Fifty GOLD MINES CORPORATION
This is Truly One Of the Big Mine Propositions
of the United States.

critics are in this section. Bobtail
and Gregory hills are as well known
as the names of the streets, trails or
roads that lead to them. The amount
of wealth that has come from their
rock-bound fastness will hardly be
known. In 1859, John II. Gregory
made the discovery of the lode, the
tidings spread and resulted in what
Colorado is today. There are many
prominent names connected with
these mines, but with the consolida-
ton, the whole subject is merged in
to the Fifty Gold Mines corporation,
which own 81 patented claims, the
most important of which are the
Cook, Fisk, Gregory, Bobtail and
Mammoth. To get an understanding
of this vast mining territory it took
such mining expert as William A.
Parrish three months to thoroughly
explore them and aided, too, by ex-
perienced assistants. A man of recog-
nized ability and authority his rec
concentrations have invariably been
carried out, resulting in the proud
position which the company now hold
in the mining world.
The veins of these properties are
invariably true assures. The acquisi-
tion of such by mining men generally
spells success, because they are deep
seated or come from incalculable
depths and must inconsequence be
The mineral at first was an oXy-
died iron of a quartz-talc material,
this holding for a depth of from 40
to $50 feet. After that there was a
change and the ores are now what is
called sulphide, that is, an iron and
sulphur, but the values are principal
Iy composed of gold, silver and cop
per.
However large the veins may have
been from which ore has been eX-
tracted they vary now from 31a to
23 feet in extent. The principal de-
velopments had been in the Gregory
incline and cross-cut on the 9O0-foot
level, also in the Bobtail adit tunnel.
The long distance which the ore had
to be transported in the past has
been improved upon until, at present,
the system now adopted for econom-
ically handling the ores and system
atically developing the mine can hard
ly be improved. With suggestions of
engineers it was reasonable to sup
pose that the consolidated interests
could readily output from 600 to
1000 tons of ore per day. To accom-
plish this it was necessary to estab
lish a main shaft for hoisting ore and
pumping purposes. This was placed
at the Cook shaft.
When the mining experts made
their report some years ago it was
claimed that the Gregory and Bob
tail veins were of low grade, the
bonanzas having been passed in de-
velopments downward but that at
greater depth the ore would again i'm
prove and become as profitable as
ever and more extensive ore bodies
were predicted.
The prospective value of the prop
erty has been fully realized with the
improvements inaugurated till now
a great tonnage can be handled OBJ
tanning maximum results at mini
mum cost.
The company contemplate sinking
the main Cook shaft 200 feet TO the six
teenth level, where they will connect
with the Fisk, Cook, Mammoth, Bob
tail, Gregory and other veins. The
ore body on the Bobtail is proven
to a depth of 160 feet and there is in
this one ore body alone about 81 ,o0O-
000 and the values in the other veins
should be correspondingly large.
The Cook shaft is now down to the
sixteenth level and connect with the
principal producing veins. This de-
velopment will place the company in
the front rank of the big mines. b.
The ore body on the Gregory four
teenth level is opened up for a dis
tance Of nearly 500 feet, and cut
ting-out station carried along this en-
tire distance; from this the company
is getting ready to ship. The mine
has over 300 feet of virgin ground
back of the Gregory and more or less
on other portions. ....
A great deal of development work
has been done during the year. A
winze was sunk 160 feet below the
fourteenth level IN the Bobtail with
a view OF proving up the ore body.
Then cross-cut to the Gregory vein
requiring $50 feet of work. with drifts
on the same to the extent of 800 feet.