The Eureka sentinel. [volume] (Eureka, Nev.) 1902-current, 1920-07-10
EUREKA MINING NEWS

,hose in touch with the mining oper-
atoms of the district, every month
.bows a marked and permanent i'm
,royement in conditions over those
A the preceding one. With the gen.
sral disposition of mining men and
Investors throughout the country to
investigate the future possibilities of
mining camps that years ago were
noted for their production In prefer
snee 10 investing in those districts
that whatever their merit may be.
must still be proven and demonstrat-
ed as profitable metaliferous regions,
Eureka is attracting and holding the
interest Of intelligent and experienced
mining men everywhere.
The geology of Eureka's ore de-
posits is much better understood now
than 1t was 80 years ago, and the ac-
emulation OF accurate information
regarding the occurrence of bodies of
lead, copper and other metals in lime
stone-porphyry formations In diff
ferent parts OF the country. is ofgreat
assistance In studying ore conditions
In this district. The former great
production OF Eureka; the knowl-
edge that in the eight to ten miles of
demonstrated naturalization the lime
stones are Of many thousands of feet
thick, and that only a shallow depth
has ever been attained in develop
ment. are all factors in convincing
those who are investigating mining
propositions that there is a larger
amount of ore still to be extracted
than was ever produced in former
years.
Eureka has gone beyond the wind
lass and whim stage of development.
Modern mining and metallurgical op-
erations necessitate sufficient capital
to carry them into the profitable pro-
duction stage later. and for those in
yestors who are seeking a permanent,
paying mining venture, no district
offers more promise than does Eu-
reka.
EuREkA-CROESUS
Eureka-Croesus is looking better
than ever. More ore of shipping
grade is now exposed than at any
period. and returns from the smelter
on shipments sent out prove that ma
terial assaying from $40 per ton up
is present In good sized bodies in
several places on the 400 level work
inRa The c0mnapv hos haap undar
heavy expense for the past two years
In equipping the surface plants with
buildings and machinery. purchasing
freighting outfits, and sinking and
drifting many hundreds of feet to
reach and prove ore bodies that were
In the beginning believed, and later
proved, to exist In the limestones be- |
low the workings of early days on the |
property.
With the major portion OF the de-
velopment plans completed and gen.
eral expenses considerably lowered |
thereby, the future of Eureka-Croe-
sus is very promising for substantial
earnings from ore of shipping grade
alone; with assured earnings of
much greater amount that will be
available when its large developed
tonnage OF lower grade ores can be
treated In a reduction plant operated
near the mine.
EUREKA-CLIMAX
Eureka-Climax is building a chute |
from the portal of the Mabel l. tun-
mel to a bin on the road about 40 |
feet below. for storing the ore COM
ing out of the Mabel l. tunnel. When |
this tunnel Is driven some distance |
further, one OF the faults in the lime |
stone that has already been passed |
through, and which shows strong ore
indications will be drifted on. The
tunnel is being pushed through the |
Dead Broke claim.
Eureka-Prince is drifting on the |
l5O foot level, air connections having |
been made with winze above. The |
ore on this level is about three feet
wide. mostly of good shipping grade. |
Gold values are high in portions of 1t, |
one sample of those assayed this week |
carrying So ounces of gold, together |
with 24S ounces of silver, per ton.
These contents were found in a |
loosely cemented lead |
carbonate, and while this assay can
not be considered representative of |
all OF the ore body on this level, 1t |
does show that ore of exceptional val
ue is being found, that may at any |
time be of sufficient dimensions to
make the most valuable single mass
of ore ever discovered In the district.
EuREKA-HOLLY
Holly is going ahead as usual, and
last month sent 500 tons of ore to
the Utah smelters, the largest amount
ever sent out from the mine in 80
days. All of this ore runs SIS. per
ton or more. and the same class is
being mined and hoisted daily. with
-