The Goldfield news and weekly tribune. [volume] (Goldfield, Nev.) 1911-1947, 1916-12-02
MINING REVIEW
Continued From Page one).

(COntlnucu rTOIu Id6O OhSt
sbale. and are apparently about to
enter the vein. A short distance
north of this point a drift has fol-
lowed the contour of the shale In a
semicircular course and has exposed
good ore for a considerable distance.
This territory offers the greatest en-
couragement of any that has been
explored in the Kewanas.
Diamondield Black Butte
The Orizaba mine, controlled by
the Diamondfeld Black Butte COM
pany, is to be opened up at a depth
shortly and developed in a compre-
bensive manner. All necessary min
ing machinery, building materials
and other equipment have been pur-
chased and the new work will be In
gre Immediately after the first
of the year. The Orizaba property
is regarded by mining authorities as
one of the richest silver mines in the
state and has already produced up
wards of 500, 600 worth of high
grade shipping ore from workings of
limited scope above the 95-foot level.
If has been estimated from ore now
exposed on the deepest level that
the opening of the mine for another
100 feet in depth will make avail
able no less than 81 100000 worth
of commercial ore. The company's
Diamondfeld property is in better
condition than for a long time past
and has lately sent to the sampler
a shipment of 5000 ore.
Great Bend Mine
Systematic development work in
the Great Bend property has borne
good fruit and superintendent
Campbell is now breaking ore of
excellent grade in the east drift
en- the 3OO-foot level and in two
raises above this drift. AS predict
ed by Consulting Engineer J. K.
Turner, the ore-shoots found or the
foot and hanging walls in driving
east have been found to unite neal
the hanging wall, making an orc
body of considerable magnitude and
of good quality. An incline raise is
being driven on the ore-shoot, near
the point where this ore was cut
by early-day lessees, and some ore
of high grade is being broken in this
work. The drift will be extended
east to the boundary, while another
drift is progressing to the west and
cross-cuts will be driven here to
explore both walls.
Jumbo Extension
A Calyx drill is to be installed
shortly on the 1017-foot or deepest
level of the Jumbo Extension mine,
in order to prospect the ground at
q eat depth. 1t is known that vein
matter extends far within the shale,
in the form of large assures, and
this vein material has been found
everywhere to contain isome gold
and copper. Drills holes will be
sunk far below the present work
ings, into the shale and alaskite, 20
determine if the o%rebodies extend
to great depth. Consulting Engineer
Turner, assisted by Foreman Lou
Dellinger, has examined and sam
pied several mining properties that
have been submitted for sale to
the Jumbo Extension company
lately.
Cracker Jack
The east drift on the 32O-foot
level is making satisfactory progress
with two shifts of men workings
machine drills, and the Columbia
Mountain fault vein, the objective
of this work, should be cut in the
near future. The management is
banking on results of this work.
Milling ore of good grade has been
exposed in considerable quantity in
workings on and above the 120-foot
level, where three shifts of men
are employed.
SandstOrm-kendan Cons.
The raise from the 350-foot level
Of the Sandstone, which is design
ed to cut the ore-shoot worked in
the Loftus-Davis lease. is now be-
ing driven and is up about 20
feet. A cross-cut was driven from
the drift into the foot-wall country
and the vertical raise is being driven
to cut the vein.