Idaho Springs siftings., 1904-11-26
The BLACK SWAN
WoRK RESUMED THIS WEEK ON The
SPLENDID CHICAGO MOUNTAIN
PROPERTY.
NIL Be ANOTHER LITTLE MATTE
GENERAL MANAGER HORACE q. BAKER
is INSTRUCTED TO PUSH
The WORK.

1oin Mining and Tunnel company. lhe
Rknel which has penetrated Chicago
Mountain little over 500 feet will he
driven ahead until all of the cross 'odes
owned by the company have been reach
Cd. The Black Swan is well defined
6ssure vein, as are also the others which
cross at nearly right angles. The in
variable rule. especially in the Chicago
mountain section of the district, Is that
ore shoots and pockets are always found
on either side of a junction OF these
assure veins. As the Black Swan tunnel
y being driven on the vein. and will
intersect 1--WE of the best veins on the
south slope of Chicago mountain at a
good depth from the surface, the COM
pany aas extraordinary advantages in
opening ore bodies a. a workable depth
in commercial quantities, the ore from
which may be produced at minimum of
cost.
A tunnel driven on the vein, as is the
Black Swan, is properly called an "adit'
level, aud has many advantages over the
ordinary cross-cut tunnel driven through
the enaried granite and ever changing
rock formation. for the reason that IL
may be driven from one-third to one-half
the cost under ordinary conditions, As
n rule either one or both walls are fol-
lowed and the work may be done quick
er. This has the added advantage and
certainty Of cutting some portion OF the
ore shoots living in the vein. which are
usually found on an angle OF from
thirty to sixty degrees in the vein mat
Der. The top of one of these shoots has
Aeen driven over in the Black Swan and
mother is coming in a, the breast.
q The surface shafts and discovery open
Ecuts on the claims in the group. have
shown much higher values than is the
6ruie on Chicago mountain. The COM
pany has a group of six elaims-the Adj
elaid, Fearnanght, Domingo, the BLACK
Swan, R. r. HAYES and Jas. A. Garfield
veins: the last three were formerly owned
bv Hon. Thos. B. Bryan, of Chicago.
The r. b. Hayes will be encountered by
the tunnel at a depih of over $50 feet on
the vein. Smeltcr shipments from the
surface gave returns of over $50 per ton.
Within 200 feet further the Adelaide vein
will be reached. Assays from the sur.
face have given as high as $3.50 per ton.
The las. A. Garfield which will be the
next vein cut by the tunnel will be
reached at . depth Of 700 f. on the pitch
of the vein, and is the extension of the
Washington. which has already pro-
duced in excess of $50. 900 from the sur
face workings. The vein is i've feet in
width. well mineralized, and assays from
81 to fIoo per ton for the crevice mat
ter. This vein should prove to be a
bonanza when cut at depth, and we'll
posted mining men declare there is no
reason why i, should not prove to be as
great producer as the famous Little
Matte mine, which is located but few
hundred feet to the west. One OF the
greatest drawbacks to the Little Matte
Imiue has been the immense quantity of
NJ water which il was necessary to pump
from the lower levels, but despite this
handicap the mire has produced con-
siderably over one million dollars. One
great advantage of the Black Swan tun-
mel is that it will drain away all OF the
water in the veins encountered.
The tunnel mouth is on the main wa
Ron road one and one-half miles from
this city, and is most favorably situated
for the easy and cheap transportation of
the product. They have ample dumping
ground and an excellent mill site at the
mouth of the bore, so that 10 case they
should decide to erect q mill for the treat
ment of the lower grade product at any
time, the ore may be dumped from the
mime cars directly into the mill at very
small cost.
The headquarters of the company are
in Chicago, the principal officers and
stock being prominent business
men of the Windy city. The president
is d. G. McDiarmid, superintendent OF
Kimb.Il Carriage company. Chicago;
George F. Thuriow, secretary. is con-
nected with the United States Shirt and
Collar company at Chicago. while the
local affairs Of the company are in charge
of Horace B. Baker, who is the vice presi-
dent and general manager. Mr.. Baker is
an experienced and practical mining
man of unquestloned integrity. and the
business Of the company under his man
agement is conducted in an economical
manner.
4