The weekly miner. [volume] (Butte, Mont.) 1878-1881, 1879-11-25

BURNETT, MOUNTAIN MOUNT ma
RIA, JOSEPHINE N CORA MINES.
[By H. c. olmstead, Mining Reporter.l
The Orphan Girl Mine.
Owned by Messrs. Larabie, DAILY & Co., is sit
uated about one mile and a half west of Butte
City, and about MALT q mile south of what is
known as the "Big Butte" 81
The vein is very strong, showing rema1ka-
bly, heavy groupings IN several places; at one
point the groupings must be so feet in width,
from here ores have been taken which assayed
as high as 800 OF.
About 90 feet south of the vein, and where
it crops the heaviest, the main shaft was start
ed, and IS now down seventy five feet (verti-
cal); at a depth of sixty-three feet, what
seems to be the casing Of the vein was cut, and
the shaft for the last 10 feet passed through
a heavy nody of vein matter and low-grade
ore, intermingled with, here and there, a
streak of fair ore.
About $50 feet west of the main shaft an
other shaft is down 45 feet; it was started
just south of the hanging wall, and sunk rs
feet, vertically, where the foot wall was struck.
The foot wall was followed (the ledge dips at
an angle of about As degrees) for 20 feet,
showing vein matter and some low grade
ore.
From the bottom of the shaft a cross-cut
was run south twenty-five feet through vein
matter, with the exception of a streak of fair
looking ore about W feet wide.
There is another shaft sunk to a depth Of
about thirty-ive feet, which 1 did not exam
inc.
The Rock Island Mine,
Owned by Messrs. Stewart 4 Hickey, is stu
ated directly east of the Lexington. Shaft No.
l, about 40 feet east of the Lexington line, is
down 80 feet.
On the 5O-foot level a drift has been run
100 feet east, where it connects with shaft No.
3, following a small streak of free milling ore
about two feet wide.
The east drift, S0-foot level, is in one hum
dred feet, where it also connects with shaft
No. 2. The ore body on this level showed
wider than on the 50-foot. The west drift So
foot level, is in 100 feet, following the ore
body, which is here about three feet wide
although in the face it has almost pinched
out.
Shaft No. 2 is down so feet. A drift has
been run on the ore body about thirty feet
east, from the bottom-in the face of the drift
the ledge is Town to a mark.
On the s0-foot level a body of ore $50 feet
in length has been opened which varies in
width from two to four feet. From this
shute Messrs. Flynn & Co., who had the mine
leased, have extracted and shipped to mill
about 400 tons of ore, the battery samples
from which averaged about SO OF. in silver
and S. in gold.
The North Star Mine.
Owned by Mitchell. Musigbrod & Co., is situ-
ated about one mile north of the Alice mine !;
it shows a strong vein in a solid formation;
the groupings are not heavy, being decom-
posed.
There is a shaft down about sixty feet, on
an incline of so degrees, on the vein; here
water was struck and drifts started east and
west on the ledge.
The east drift, 90 foot level is in forty feet,
following a body of ore varying in width from
two to six feet. The widest part of the ore
body seems to lie near where this drift is start
ed, as in the following, 1t narrowed down to
a mark which is all that shows in the face.
The west drift, 60 foot level, is in so feet,
showing the same characteristics as the east
drift, wide at or near the shaft, and grad
ualy narrowing to a streak in the face.
The total length of the ore body is about
ninety feet.
The mine was worked all of last summer
by Hall & Co., who had it leased. About 800
tons of free milling ore was extracted from
the 5O foot level, which was shipped to the
Dexter mill the battery sample of this ore
went from 81 to AZ or. in silver. Work at
present is suspended.
The Carrie Mine,
Owned by McMarten & Owsley, is situated
west of the Buffalo mine; shows a large vein
from 6 to II feet in width. The Shaft is
down about 80 feet in the ledge, the bottom
being all in ore, which 1 am told will average
70 OF.
About 500 tons of ore have been extracted
from this mine, which averaged over so OF.
The Unita Mine
Owned by Largey & Co., is situated about two
miles west of Butte, in Independent district.
1t shows heavy groupings, specimens from
which have assayed as high as 60 or.
The main shaft is down about fifty feet,
vertical. 1t was started south of the ledge,
and The bottom is now in ledge matter and
low grade ore.
SIM No. 2 is down 80 feet, showing a five
foot ledge of so OF. ore, which, however, car
ries manganese enough to make it refractory.
Shaft No. 3 is down twenty feet, and shows
a four foot vein of low grade ore; it also car
ries too much manganese to be worked by
a free milling process. Considerable ore
has been worked from shaft No. 2.
..a- The Belle Mine.
The east DRIFT, 52-toot level, main shaft, is
now in about 80 feet. They have been run
ming this drift through a body of fine looking
copper ore, the face at present showing about
2 feet Of 40 per cent. ore. PIE"
The west drift, 52-foot level, is in about rs
feet Is feet from the shaft the ledge swung
off to the south, consequently the drift (Which
was run straigbt) is now in granite. 1t is,
however. bearing to the south, and will prob.
ably again be in the vein shortly. - a-
The west drift from the bottom of shaft
No. 2 has made connection with shaft No. q.