The Goldfield news and weekly tribune. [volume] (Goldfield, Nev.) 1911-1947, 1916-10-21
REPORT OF PLACER OPERATIONS
ISSUED BY round MOUNTAIN co.

was from e rock. The
total cost was s~27,S97.5S, leaving
a net realization of s2O,27S.95, or
AZ per cent Of the total amount re-
covered. The value per yard recov-
cred was s.33S, the cost $.195, leay-
ing a ne realization of $.143.
The decrease in the costs per
yard during the high water sea
son is due primarily to the increased
supply of water made available by
the purchase of the holdings of the
Round Mountain Power & Water
company. With the use of the addi-
tional supply of water from She
shone and Jefferson creeks, the
AVERAGE yard duty per miners inch
of water has beer greatly increased,
resulting directly in greater eff
cheney and reduced costs.
The acquisition of the Jefferson
and Shoshone pipe lines added APP
fortunately 200 miners inches to
the company's available supply to
the company's ground and in re-
pairing the boxes and intakes has
been cha gel C'fectly M operat-
ing expense.
The figures indicating a gross
yield of $4S,176.53 from 142,5"0
yards of gravel do not include the
entire cleanup which will be made
a result of washing this amount
gravel. Bedrock on about one-
eighth of the entire area hydrau-
licked has been swept, and it is
known that a large amount of gold
remains on bed rock. 1t is i'm
possible to estimate with any de-
gree of accuracy the totar amount
but it is believed that
it will be from $4,000 to $4,000.
Bed rock varies in richness depend
ing on local conditions. Some of it
is smooth and swept clean by the
but most of it is rough
and full of open seams which col
lect the gold.
Results obtained to date prove that
the block of ground hydraulicked
season is lower grade than
was indicated by the preliminary
sampling of shafts and pits. The
original estimate of 81 per yard was
based on the results of hydraulic
operations in pits adjoining the sec
ton washed during the past season
and on a sampling of all available
openings.
Up to July LIST, 1888 per yard
I.. I4@n --~ H.
and from bedrock cleaning. In adj
dition there is estimated to be from
$4,000 to $4,000 in the branch
races and main failing flume. This
gold cannot be recovered while ac-
tive mining operations are being
conducted but will be cleaned up
"a the end of the season. Taking
all factors into consideration, it is
believed that the total value re-
will approximate $50 per
yard.
These results do not call for any
change to be made in the original
estimates, as the latter are repre-
sentative of large blocks of ground
and not merely local sections. Prior
to 1915 an average value of $1.55
was recovered from all gravel wash
ed on various sections of your COM
pany's property. Therefore, an aver
age estimated value of 81 per yard
recovery is conservative. The re-
obtained this year could not
be forseen, as it is evident hat a
large low grade area was en-
countered adjacent to ground yield
inc over So per yard.
Planning tests of the bank and
nod rock bitches indicates that work
ing to the north the ground is i'm
p'oving steadily in value, the sam
pies taken showing values Of 50 or
more per yard. The influence OF
the ridge is also diminishing as the
cut is carried easterly and the
amount of gold content per yard Is
finitely assured hat for the remain
der of the season highly profitable
ground will be worked.
1t must be recognized that in a
hillside placer in which the gold
content is derived from the erosion
of veins and stringers, and has trav-
eled relatively short distances, the
distribution of values is very ezra
tic. Local bedrock conditions are
affected by the occurrence of small
sulches. These local conditions can
always be recognized from a
study of the surface topography.
The great expense necessary Tor
accurate sampling and estimation
of value is entirely unjustified. Min
ing has proceeded according to the
plans originally adopted and no
attempt has been made to select
enriched sections.
At the beginning of the yea it
believed, due to the ~unpreceden-
snowfall in that the