Los Angeles herald., 1908-08-31
Los ANGELES MONDAY MORNING. AUGUST 81. 1908
DOS CABEZOS DISTRICT Will BE GREAT COPPER PROD

teen hundred feet farther up the gulch
IN what Is known as the Oregon open
cut, eight and a half feet of solid sui
phide ore is exposed and gives assay
returns Of eight per cent copper, two
ounces in silver and 81 in gold.
Average samples from the dump OF
the Consolidated tunnel give returns of
eight per cent copper, forty ounces of
silver and SO 80 in gold. The first vein
cut in this tunnel shows twenty-five
feet of ore that will run nine per cent
copper, forty ounces in silver and $3.50
in gold. The others are almost as wide
with values running almost identical
in copper and gold. The silver values
appear to vary materially.
Big Fissure Vein Is Exposed
In the south vein series, one of the
largest and most promising assures in
the territory has been exposed by sur
face work. 1t shows width in places
OF over 220 feet and the footwal rock
is exposed in a gulch for over 1000 feet.
The hanging wall side of the vein has
eroded and houlders of ore of immense
size have rolled down. One of these
boulders weighs between 300 and 400
tons an assays four per cent copper.
This fissure runs about forty-five de-
grees east of north and west of south
with dip of forty-five degrees to the
SAAN
summit of the range and shows equal
strength at every opening.
In order to develop this vein at a
vertical depth of over 300 feet, or about
1900 feet on the dip, a tunnel, known
as No. 1, is being driven and has now
reached a length of 1150 feet. Five
hundred feet more should take 1t to the
vein, and, unless all signs fail, an inn
nense tonnage will be opened up. In
driving this addition three other veins
have been crosscut, and one, six feet in
width, shows one of the finest bodies
of black sulphide ore in the territory.
Average assays give returns of twenty
eight per cent copper, $3.50 in silver
and 81. so in gold. This at vertical
depth of over 300 feet. The first vein
cut was fifteen feet wide with lower
values, and the second eight feet wide
with an average of over twenty per cent
/ copper twenty-three ounces in silver
and .32 ounce In gold.
lPIans Thorough Exploration
TIE future plans of the company in
clude the immediate driving of thia
tunnel to intercept the vein and the
thorough exploration of the ore body.
On the north vein series work will be
prosecuted on the north side of the dio-
rite fault and the ore bodies already
shown will be blocked out. Captain
Tibbv estimates that the expenditure OF
$4,000 will place 100000 tons of ore In
sight, and that the average of $5 profit
per ton can be shown.
Those who have examined the ground
believe that one of the great mines OF
the territory, and therefore of ths
world, will be opened up Without
sinking foot total vertical depth o.
1900 feet can be obtained on the south
vein series under the summit of the
mountain, while on the north vein
series at least 800 feet can be obtained
or nearly 1900 feet on the dip. Remem-
bering these features and the favorable
conditions under which mining is prose-
cuted. it is believed not too much IL
say that the Dos Cabezos district will
soon take its place with the great pro
ducers of the territory that has now
left its older rivals. Montana and
Michigan, far in the rear.