The Goldfield news and weekly tribune. [volume] (Goldfield, Nev.) 1911-1947, 1917-09-08
review OF MINING

1ocS INV
able production. The ore has been
found in the main Florence vein, but
we'll within the ground of the Red
Hill Florence company and dipping
back into the ground on the upward
incline, which is now being follow ed
by the present development work.
An important feature is the fact that
this ore, both in the raises and
shown in the main drift on the 500
level, appears to be the continuation
of large deposits of shipping ore
found in early leasing operations on
the adjoining Florence property, but
a few yards distant, as the Rogers
Syndicate lease slopes were worked
and bonanza ore was extracted from
them directly up to the joint bound
are line.
Great Bend Mine
A further improvement is shown
in conditions at the Great Bend prop
erty by the mine assays of the PAST
few days. The new raise, parallel
with and about 35 feet east of the
main stope above the 160-foot level,
has continued for some so feet in
high-grade ore. insuring a large ton
mage of highly profitable ore from
this part of the mine. The latest
sampling of the raise indicated a
width of four and one-half feet av-
eraging $50 per ton. Raises from
the 3OO-foot level have produced ore
of shipping grade and it is apparent
that this territory will produce a
large volume of shipping ore
Cracker Jack Mine
Changes in the character of the
country rock in the face of the main
east cross-cut on the 320-foot level
Of the Cracker Jack property indi-
cate that it is nearing the Rabbit
Trail vein, for which it has been
driven. The cross-cut has passed
through the main Columbia Noun
tain fault vein, cutting this vein
twice, apparently due to a step faul:
of large extent, and has been con
tinued to the east to reach the parai-
lei vein. When this vein is exposed,
it is the plan of the management to
sink a Wine in order to reach and
explore the point Of contact between
the two veins. Two drifts have been
driven south from the cross-cut, both
following the hanging-wall side OF
the two faulted segments of the fault
vein, and both have exposed ore Of
commercial grade in considerable
quantity.
Jumbo Extension
A large amount of development
work is being conducted in Jumbo
Extension territory and a new plan
of operations that may bear import
ant results has been decided upon
by Managing Engineer ]. X. Turner.
A winze is to be sunk to great depth
from the bottom OF 1017-foot level,
at the point where the main vein
enters the shale and where some
good ore was mined during the per-
iod of heavy production. The OBJ
ject of this work is to explore tho
vein far within the shale and into
the alaskite. Good reports are corr
ing from the Copper Mountain prop
erty, where lessees have resumed
shipping and the company work of
sinking two working shafts is max
ing satisfactory progress.
SadstOrm-KendalI Cons.
In line with plans for exploring
new territory. a cross-cut is being
driven to the east from the main
drift on the 26O-foot level to explore
the parallel Kruger vein, which pro-
duced some rich ore from surface
workings.
Jumbo Junior
A cross-cut is being advanced in
an easterly direction on the SS0-foo:
leevl of the Jumbo Junior and has
been showing over two feet of ship
ping ore in the broken, faulted area.
Grandma Consolidated
Good progress is being made in
sinking the main shaft of the Grand
ma company, with the aid of excel
len equipment, and the shaft is now
in the latte and will be continued
to reach and explore the shale con
tact zone.