Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1907-09-05
WALKER ON YERrNoToN.
Boston Authority Says Nice Things
About Nevada Copper District.

George J.. Walker. the well known
copper authority. who visited western
copper camps recently. has expressed
himself in very favorable terms about
The YCrington district in western Me-
vaaa lie says
The surface and ncar-aurface show
Ing 200 the Yerington district Is one Of
the best I have ever seen. and / have
seen nearly an OF the important copper
districts in the United States. Canada
and Mexico. For the amount OF work
that has been done an astonishingly
large amount Of commercial ore has
been developed. There are innumcrablo
small piles Of good shipping ore 8 per
cent no 90 per cent copper. by the sides
Qf prospect holes, and tunnels through
out the camp There can Boz seen on
every operating property except those
of the few wildcat companies whose
properties are chiefly in the granite
formation where no ore exists on out
ou the desert in the sand Yerlngton
ores run low in gold and silver. car
ryirg am average of t5 20 so cents 20
the tou.'
"Tcats have been made recently which
demonstrate that Ycrington ores viii
smclt readily and also that when go
per cent 90 CD per cent OF the charge
ig suluhidos they are self-nuNing The
quite extensive development work done
during tine past year or two has opened
more or less sulphido ore in every miuc
OF Importance in the camp. IL there
fore seems probable that the necessary
euiphldC win Doe supplied by the time
that smelling operations begin. Mag
uetic concentration has been tried ON
the low grade sulphide ores with very
satisfactory results. systems of ledrn-
ing arc being considered also, as APP
parcntly very large deposits OF car
donates. silicates and Oxides which
win average o per cent 90 per cent
copper win be developed on the sur
face.
'The surface showing on the prop
crty Of the Nevada Douglas Copper
company is one Of the most remark
able TO be found anywhere. over
the tops OF the hills. which occupy
about the center Of its group Of claims,
there Is one continuous, uubrokcn area
Of naturalization. An engineer who
sampled and measured u carefully says
that there are 800 600 square feet OF
area which IS underlaid TO within two
60 four feet OF the surface with car
donate and silicate ores which carry
an average 81 per cent 10 3 per cent
copper This ore probably averages
five Co 90 feet in depth. with the body
breaking up into veins and deposits
of richer ore below.
Commercial ore is exposed in more
than thrce-quarters Of the openings on
the Nevada Douglas property. There
are so many faces OF good ore that II
would seem an easy mater TO put the
property An shape within q few months
To supply a smeltcr with 1000 tons OF
ore daily. Before erecting a reduction
plant however, "a good supply OF sui
phido ores should be available, ana tho
development work now under way has
this object in view.
Mason Valley copper IS developing
what promises 20 prove a very large
body OF massive iron sulphido copper
ore Assays SO far taken indicate that
% carries about per cent copper and
81 ir gold and silver. IL was encoun-
tered in the company's tunnel which
De- now about 1000 feet long and cut
through and drifctd upon. Apparently
~ is a great lenze OF replacement body
which has been opened near its top.
AT the tunnel level Il is 20 foeet long
bv so feet wide. and IL promises 60 be
stHl larger at greater depth"