Lyon County times. [volume] (Silver City, Nev.) 1874-1907, 1875-05-20
From the Gold Hill News, May 1sth.l
COSMOPOLITAN MINE.


locations of the country, and has
been worked upon and prospected
from time 10 time; yet, comparatively
little in the way of regular and eff
fective system of practical working
development has been followed until
the present time. 1t is now owned
by company of San Francisco cap
italists, and men of influence in min
ing circles, who, approaching the
real value of the ledge as already
shown by previous workings, are
making it productive, sulf-sustain-
ing mine-simply extracting and
milling the ore. The superintendent
of the mine is Mr.. c. S. Coover, one
OF the ...r. -.
OLDEST MINE AND MILL MEN
in this section. He is, in fact, the
pioneer mill man, having, together
with his partner, DR.. Harris, built
and operated the first quartz mill in
this section-the old Coover d Harris
mill, which stood just above where
the Rhode Island mill now stands, in
Lower Gold Hill. The foreman OF
the mine is Mr.. Roberts, first class
we'll experienced miner. We paid
a visit of inspection to the mine yes
terday, and give the result of our
personal explorations and observa-
ton: The mine is situated in the
hills to the northward OF Silver City,
and about a mile distant from that
place, and is easily accessible by a
good wagon road, over which the ore
is hauled to the -+..
HOPE MILL, SILVER CITY,
which commenced reducing the ore
of this mine some three weeks ago
and is kept steadily running upon it,
reducing at the rate of from 20 to rs
tons per day. Should additional
capacity be secured consid-
erably increased quantity of ore could
be easily supplied from the mine.
which is already in pretty good work
ing shape and is getting more SO all
the time. The ledge is very well de-
fined at the surface, and runs across
a steep hill in nearly north and
south direction, and the old surface
along its line show it to
present dip or inclination of about
As degrees, down to the level of the
main tunnel, the present lower work
ing level, which opens the ledge and
mine 800 feet below the surface.
THIS MAIN TUNNEL
or adit commences al an eligible point
on the north side of a rayine, and is
about $50 feet in length. 1t intersects
he vein about 10 feet from its mouth
and follows it. The vein is from five
70 ten feet in width on the average,
in places it is 16 or 20 feet
wide. The hanging wall is of rem
regularity, smooth and we'll
defined throughout, and the vein is
Of a very advantageous width for
working, ore extraction, timbering,
etc. The principal workings, in the
way OF ore extraction at present, are
confined to the northern portion of
,he mine, where, for distance of 175
feet, stopping is being done at short
intervals, above the tunnel level,
taking out the ore. The highest
raise in the stopping is to the height
of so feet above the tunnel, showing
that there is very large amount OF
ore between the tunnel and surface,
to say nothing of what must be below
the tunnel farther ahead. The gen
eral
CHARACTER OF THE ORE
is dark yeliowish or reddish brown
quartz, some of which is hard, white
and fiinty, while the richest portion
is more ofa clayey or soft nature, in
terspersed with streaks Of soft black
ore or clay, rich in gold. 1t is es-
sentially gold vein, the proportion
of silver being one fourth or fifth.
Considerable free gold, visible to the
naked eye, is met with, the silver ex-
listing in the form OF chlorides and
sulphurets. Twenty men are en-
ployed in stopping, tumbling the ore
through the chutes and otherwise
down to the tunnel level, where it is
run out to the dump by the carmen.
AS fast as each section is stopped out
it is very carefully filled in with
waste rock, thus securing the mine
against any possible cave. The face
of the main tunnel is in rich ore, and
running further ahead in that direc-
ton is suspended at present, but will
be resumed in day or two. One
Wine so feet deep, and another 20
feet, are sunk below the tunnel, and
both are in
EXCELLENT MILLING ORE,
giving a good idea of the future res
ources of the minein that direction.
AT some points in the stopping, fine
little bonanzas of good ore are met
with which requires no asserting,
while at other points it needs to be
carefully assorted, the poorest or re-
fuse ore being used as waste rock to
fill in the worked out places. The
average milling yield of this ore per
ton is not yet definitely ascertained,
but enough is known to establish the
Cosmopolitan as paying, selfsus-
tanning mine, remunerative to the
stockholders. 1t certainly is under
excellent management, being judic-
iously worked, and during the few
months the present company have
owned it, they have done a large
amount of effective work, and devel-
oped a fiourishlng as we'll as very
promising mine.