Tonopah bonanza. [volume] (Butler City [i.e. Butler], Nev.) 1901-1909, 1909-03-27
MONTANA.ToNoPAH.

MON
During the week the mill crushed :
776 tons of Montana ore and 230 tons :
Of MacNamara ore. This is the last 7,
shipment Of MacNamara high grade ,
that the mill will treat as the con-
tract between the two companies has
expired and has not been renewed.
The average per cent of extraction
was SO. In the mine 157 feet Of
development was recorded.
306-foot leyel-The raise on the
Macdonald vein 300 feet west of the
shaft advanced seven feet during the
week and is 0 up e~ighty-six feet.
The vein in the back is too low grade
to mill and averages about three feet
wide. The vein lies fiat at the pres
ent time, but 1t is expected to i'm
prove when the point is reached when
1t starts to s~traighten up again. The
east drift on the Triangle vein adj
.vanced thirty-fve feet and is badly
broken up in the face. Immediately
back of the face the cutting out of a
stope has been started, which is be-
ing done in order TO test the vein at
this point, where it averages about
three feet of oxidized ore of a good
grade. During the week stopping was
continued on the Triangle vein in the
central and western portions. The
central part Of the stope averages
about six feet Of ledge matter of
which four feet is OF a good milling
grade. The west portion will aver
age about three feet Of milling ore.
496-foot level-The east drift on
the Martha vein has advanced six
feet. The vein in the face is low
grade and carries stringers OF quartz.
The west drift on the same vein al
vanced twelve feet to where the vein
was cut off in the face by a fault. Up
to this point It averaged eighteen
inches of good milling ore. The cut
ting out OF a stope has been started
on the South vein between 800 tc
400 feet west Of the shaft. The weir
in the stope so far exposed averages
about two feet of good mill ore.
Stopping continues On the Maedon
aid vein 1000 feet west of the Fhaft
} where the vein averages about threI
feet Of high grade milling ore.
Stopping continues on the Macdon
, aid vein 1000 feet west of the shaft
! where the vein averages about tire
feet of high grade milling ore.
. 515-foot level-The east drift o,
. the Martha vein has been extende
sixteen feet, where three feet Of goo
? milling ore is exposed. The crosscu
west from the the southwest drift o
this vein advanced t~wenty-six feet
y The face Is in andecite and has nc
yet encountered the parallel vein
was sent out to find. The winze 0
the vein was sunk seventeen feet an
: Is now down fifty feet below tn
= level. The bottom is following a two
foot streak of milling ore. The mai
part of this ore body is along tn
= footwall. The cutting out of a stoI
has been started on the vein immet
! lately west of the winze, and whic
averages at this point twenty feet
70 width and consists of a net work
u stringers of rich ore. This entire ma
will be milled after sorting.
sos intermediate level--Stopir
! Is continued on the south branch
= the Martha vein. The west end
the stope has been extended by
stub drift above the fault. The We
in the face of this drift shows abo
! twelve inches of high grade millii
- ore.
~ 615-foot level-The raise to co
meet with the Wine sent down on {
South vein from the 515-foot lev
:, which is situated about 200 feet We
Of the shaft, advanced thirty fe
during the week and made the CO
nection. Chutes will be put in at I
bottom of this raise and drifting W
he commenced at a point about fiji
!. feet above the level. Drifts Will
sent in both east and west. Stopi
on the new vein near the Midway 81
line 600 feet west of the shaft CO
tinues on two streaks that will ay
age about two feet of high grade m
ing ore. These streaks are separ
ed by four feet of waste and are
parently nearing each other as
drift progresses to the east. Stop
on the Martha vein 200 feet east
the shaft shows no change. The v
here will average two feet OF mill
ore. In.the Slopes on the Macdon
vein below the level and west OF
main crosscut, the vein ayera
obout four feet of good milling