The Daily Missoulian. [volume] (Missoula, Mont.) 1904-1961, 1913-04-04
LARGE BODY Of ORE
IS UNCOVERED
SPLENDID FIND IN NATIONAL
MINE SAID TO OUTCLASS
SNoWSToRM VEINS.

Mullan, April 3.-(Special.)-Work
at the National mine near Mullan
during the past two months has de-
ve]oped a mammoth body of copper
s%ulphides which outclasses anything
yet found in the Mullan district in
copper ores. The Snowstorm on the
same belt, has a large body of the
same character of ore, but the Ma
tional ore body has every appearance
o. being more extensive thar the
SnoWstorm. SO far as developed, the
ore body shows $50 feet in length and
20 feet wide of solid sulphide milling
ore. The end of the shoot has not
been reached in either the east or
west end. So far all the development
work has been to the east, and the
ore still continues there as strong as
any place in the shoot. Two cross
cuts and several diamond drill holes
have been driven across the bed, all
of which show a width of from 70 to
Is feet. The ore is very uniform in
ucs in connection with the copper.
The occurrence is a bedded vein in
stead of the usual fissure character.
istic of the Occur d'Alene lead-silver
mines. The ore bearing strata is d
thick bed of the Revett quartzites,
bounded on either side by dense tale
seams which "a held the copper So
lutions. Beds of Revett of similar
structure bound the vein on both
sides. but contain very slight mineral
values. The ore bearing beds have
the same strong northeast and south
west trend characteristic of the Re-
Nett bedding, with a strong dip to the
south and west. The opening IF this
giant ore body in the National prac-
tically proves the great extent T.: the
copper deposits in the Mullan district,
and assures the camp of a long life
and increased output. The p D
belt is extensive, but the surface
groupings are very poor, when COM
pared with the great bodies of ore
opened at depth. The groupings on
the National give no indication Of the
ore bodies underneath. The vein
which the National company was en-
.deavoring to open was a lead-silver
fissure vein on the surface, but this
sheet of ore has not been opened in
the lower workings. The great body
of copper ore found apparently has no
connection with the surface, and not
a pound of the copper bearing I.evet1
was found in the National upper
Workings. The distance between the
National and Snowstorm is over one
mile, n between these two the
ore body of similar character il the
po3r.tt 1nIc ,.htn1, D. -
tensive in width and length, like the
others. Leaving the National the
bearing beds strike northwest
through the Copper King property,
but lave not yet been opened farther
west than the National for the reason
that they strike further north than the
King tunnel extends. The Cop
per King company will probably make
arrangements to open these beds
either by diamond drilling or extend
ing the main crosscut. The Missoula
and Independent companies are in the
or companion beds of the min
erali2ed ReVett and both companies
have excellent showing of large bod
les of ore opened in their surface
workings. The National ompan
wv htahlIS iItpiIftioi . ipI d iliIiIlli5S |
to be erected hhis var. The
of ore blocked out in the
fully justifies his move. The
plant will be of the same character
as the SnoWstorm, but efforts will be
to install several new improve
ments over the Snowstorm plant. 1t
will be located at soine point on
gulch not yet decided on
just east of Mullan.
The Iron Mountain company of
Superior has started operations with
power furnished by a temporary
hydro electric plant at Thompson
The electric plant is for the
purpose of furnishing power for the
of the $4,000 horsepower
to be erected at THE falls by
Ed Donlan and associates. The
promise completion of the plant in
Two years. The Iron Mountain COM
pany constructed its w pole line
from the mine to Paradise at a cost
Of $4,000, and is at present engaged
IN sinking the main working shaft