The Goldfield news and weekly tribune. [volume] (Goldfield, Nev.) 1911-1947, 1915-02-27
NEVADA HILLS REPORT
CONTINUED from Page One,

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eastward extension of the vein were
further tested on the S0O-foot level,
but with negative results.
The Wingfield vein, as exposed by
raises and intermediates from the
S00-foot level, is indicated to have
bottomed along the hanging wall of
the Blout vein at a depth of no
feet. AS the attending geological
conditions are identical with those
obtaining at the point where the
Nevada Hills vein passed out of pay
values, little hope is entertained that
the vein will %reappear at any great
er depth.
The Eagle vein, west of the big"
fault, was developed to a depth of
200 feet and about 1000 tons of
mill ore recovered near the surface,
but no commercial values found be-
low the 50-foot level. The same
vein, east of the big fault, was cut
on the 900-foot level. and suffi-
GENTLY prospected to determine it's
persistence to that depth, but no
commercial values were encounter
ed.
The Five Hundred and Three vein,
heretofore unknown, lies parallel to
and 200 feet south of the Eagle
vein, it having been exposed by the
9OO-foot crosscut. Since discovery
it has received 200 feet of drifts,
which prove it, where exposed, to be
erratic both in width and value. A
small tonnage of ore has been re-
covered from the development and a
further small tonnage of low-grade
mill ore is assured. In addition to
the drifting it's possibilities are be-
ing further determined by raise and
winze. The vein in places has
shown values up to 500 per ton
over widths approximating one foot.
Little in itself this may be, but it
is encouraging in the proof it affords
that conditions suitable for ore depo-
sition have existed at this depth,
which is the greatest yet attained in
the mine, and some 800 feet below
any commercial values heretofore ex-
posed in the Eagle vein zone.
In connection with the company's
milling operations it is shown that
the plant capacity was gradually in
creased from 145 tons in January to
slightly more than 200 tons per day
during the last few months, making
an average for the year of 176 tons
per day. Extraction has varied
from sc to 80 per cent, with an aver
age of 8S.S per cent for the year.
Under the head of ore reserves it
Is pointed out that the present ex-
pOsures of ore, while not in any
sense blocked" are considered suf-
ficient to supply the mill at capacity
for an additional even months.
However, the margin of profit is ex-
pected to be less than 81 per ton
and a temporary period of depres-
sion might at any time affect the
head value Of the ore sufficiently to
completely wipe out the margin of
profit for that month.
The managers report says:
when it is taken into consideration
that the capacity of the plant per
month was raised from 1000 to g.
900 tons during the year, it is ap-
parent that the present reserves of
approximately 10000 tons are as
much as were exposed on December
81, 1913, indicating that develop
ment for the past year exposed al
much new ore as was extracted.
However, it must be acknowledged
that a large proportion of this new
ore is in reality low-grade vein mat
ter previously exposed. that has au-
tOmatically become ore by virtue OF
the greatly decreased operating
costs per ton. Using the past few
months as a basis, the present cost
of producing silver is 43 cents per
ounce.
"The statement of ore is based on
silver at so cents per ounce and of
course is somewhat dependent upon
the future silver market. The
property, during the past year, pro-
duced 100000 ounces refined silver,
which was marketed at approximate
ly six cents lower price than the
average for 1913, thus accounting
for $4,000 of the lessened produc-
ton which the past year shows un-
lor that Of 1Q1Co