Tonopah bonanza. [volume] (Butler City [i.e. Butler], Nev.) 1901-1909, 1909-06-05
MONTANA.TONOPAH.

ing the usual extraction. In the
workings of the mine 1872 feet Of de-
velopment work was recorded.
390-foot level-The west drift on
the Triangle vein advanced fourteen
feet and the face now shows string
ers Of low grade ore. 1t is very prob
able that this drift is not on the
vein as was first expected, and a
crosscut will be sent out to prospect
for the vein. A west drift from the
footwall crosscut under the central
portion of the Triangle stope, which
encountered the ore last week, was
sent ahead seventeen feet in ore OF
a good grade. In the stope work
continues in both ends with no
change.
465-foot level-The west drift on
the Triangle vein advanced eleven
feet. In this distance the vein d.
vided but later the different sections
combined again and at the present is
somewhat low grade In value. Dur
ing the last few feet the values have
started to increase and the face shows
about three feet Of quartz. The stope
over the drift has been carried west
fifteen feet on a ledge averaging
from two to two and one-half feet in
width and carrying good milling ore.
The stope on the Martha vein was
advanced fifteen feet on about two
and one-half feet Of milling ore.
The intermediate drift on the Mac
donald vein. at a point about 1000
feet west of the shaft and between
the second and third levels, advanced
eight feet on a ledge averaging three
feet of good sulphide ore. A raise
has been started from the third level
and when the connection is made it
will be used as a chute, affording bet
ter means Of handling the extraction.
A new stope will also be started on
this block of ore after the making
OF the connection. At a point 200
feet east Of the shaft on the Mac
donald vein the west drift has been
driven eight feet on a faulted block,
known to be a continuation of Ruby
Alley. This is probably the east end
of Ruby Alley and should continue to
the Mizpah fault, a distance of about
thirty feet. It shows three feet of
good sulphide milling ore.
515-foot level-The east drift on
the South vein advanced nineteen
feet, the face showing two feet of
good milling ore. The slopes over
the west end OF this drift have been
producing two and one-half feet of
good oxidized milling ore. The west
drift on the South vein advanced
t~wenty-six feet and has connected
with the old workings of this level.
The face shows two feet of good mill
ing ore.
intermediate, 565-foot level-The
west drift on the South vein was
sent ahead nine feet, and the face,
owing to some side stopping is about
fifteen feet wide and shows three
streaks, each averaging about two
feet In width. This drift has also
been driven to the east for about
nine feet and shows about two feet
OF good milling ore. The east drift
on the new vein encountered by the
south crosscut from the east drift on
the Martha, advanced twelve feet.
The ore is still considerably broken
with the values rather low. Work
was resumed during the week in the
stope on the Martha vein above this
level, and some good ore was ex-
tracted.
615-foot level-The north crosscut
from the bottom of the winze on the
Martha vein. that was sent down from
the 515-foot level, was extended
twenty-four feet in low grade ore.
This quartz is under a fault and a
raise has been started to cut the fault
and encounter the ore. The vein
should be found at a point about
twelve feet above the drift. The east
drift on the Midway vein advanced a
few feet and shows a few feet of mill
ing ore. No change is reported in
the Macdonald, Martha and A B X
slopes on this level.
765-foot level-The main north
crosscut advanced fourteen feet dur
ing the week and is now out 1897
feet from the shaft. The face CON
tinues in rhyolite.
TONOPAH MINING.