The copper era. (Clifton, Graham County, Ariz.) 1899-1911, 1911-05-12
TWIN PEAKS COMPANY
MAKES SPLENDID SHOWING
Much Exceptionally High Grade Ore Has Been En-.
cOuntered and the Average in the Workings
is $500 and is Still Coming in on
the 100 and 200 Levels
IBY CHAs. A. DINsMORE. !

(BY CHAS. a. DINSMORE.)
The Twin Peaks Mining Company s
properties lie on the border of New
MexicoandArizona, p miles from Dun,
can. Arizona; and the properties are
SO named because of two very
prominent peaks up lifted above
their fellows, and which may be seen
for many miles in any direction.
The property was discovered several
years ago by James Fraser, and a
little later be interested his brot hers,
Daniel, Alexander, and Joseph, and
their brotherin-law. A. N. Newhouse.
These FIVE carried the burden of de-
velopment for more than a year,
when a company was formed and
friends and business associates as
sisted in the work until today they
have a well-developed property hav-
ing real worth.
There are 10 claims, or 10000 feet.
on the vein traversing the country in
a southeast northwest direStion. this
vein being an average uf feet in
width. Throughout its length it
carries free gold, in value over S.,
and the average in the workings is
above SIS. Much exceptionally high
grade ore has been encountered, and
1t is yet coming in at the 100 and 200
levels in the main working shafts:
and in the two other deep shafts
there is considerable highgrade-bu
of course the worth of the mine is
based on the larger quantities of
medium grade. There is now much
stoping ground in the three deep
shafts of better than SIS material.
The country rock is andesite and
rhyolite. apparently overlaying
granite, the latter at great depth to
judge by exposures found two miles
below the mine. The vein is a true
fssure. Paralleling the vein is a
very large por phyry dyke, mineralized
to some extent. This trends down.
ward toward the vein, and if the dip
continues as in the past there will be
a conjunction at something like 400
feet. AS values and ore increase
the surface The matrix has leached
considera bly,, it is expected that the
better ore bodies, both as to quantity
and values, will come in when the
contact is reached at considerable
depth. The surface ores are free,
and this continues down to below the
100 level, where, to the east of the
shaft, sulphides have come in; and
here the values are better than at
less depth. The sulphide is a heavy
values, as wen as gold, but there is
no refractory content, thus making
an ideal cyaniding product. The
formation here is very deep, proven
by the exposures in Apache Canyon
and also at the point where hydro
electric plant will probably be in
stalled, There are deep shafts-one
120 feet, one 100 feet, and one 200
feet. On the 100 level in the latter
drifts have been run east and west,
the former 20 and the latter 30 feet.
The shaft seems to cut the ores, as to
the east it is sulphide and 10 the west
it is still oxidizei, gold being free.
There is a full face of the latter, and
the drift is about under a very ex-
tensive ore chute showing on the sur
face. AS the vein is not exactly per-
pendicular, the vein trends out of the
shaft from the 100 down, but at the
200 level there is about feet of sui
phide material carrying values above
$50. The station now cutting, it is
confidently anticipated will cut the
foil vein, where the ore will be as
always before, all of feet. The
gangue is sugar quartz and quartzite,
the former. possibly due to crushing.
In the oxidized portion nearer the
surface values run very high through
out the vein, there being no waste.
To the northwest along the vein from
the main working shaft great deal
of prospecting work has been done,
showing a assure of great persistence
and the values permanent and
uniform. There is a 7O-foot tunnel
near thee northwesterly end of the
property, having a full face all the
way in of excellent ore.