The copper era., 1901-06-27
THE SHANNON MINES.

THE SHANNON MINES.
A representative of the ERA was
permitted to examine report on the
properties of the Shannon Copper Co.,
recently prepared BY Prof.J. a Church.
1t is an elaborate report, and gotten
up with great care, giving photo
engravings of the property, aud maps
showing the workings of the mines
The people of this country have always
had the .=ost implicit confidence in
the Shannon as one of the big mines
of Arizona. This tlesort therefore
only confirms their good opinion OF the
property, and now that a smelling
plant has been ordered and will soon
be in place. it will not be many months
until Clifton will have another prOduc-
ing company. The Shannon company
now owns about sixty claims including
smelter site, among them being many
patented claims, which have long been
recognized as among the very best
mines in the district, with large
olliOuIb VI dtNCAOpilAClt WI n vi Cav IL
The ERA is informed on good authority
that there is now ore enough stopped
out 10 keep the new plant. at its
present capacity, running for ten years.
The following is a short synopsis
from Professor Church 5 second report:
"a second visit to the Shannon has
confirmed and increased my good opin-
ion of the property. The mine looks
extremely we'll everywhere. The pro-
posed plan of opening for future work
is good and will be very economical.
THE smelter site is we'll chosen, and
will give room and the grade necessary
for very large works.
THE large west ore body of iron
stained ore yields 4.5 per cent; its ton
mage is large. The body of ore in the
east cross-cut also shows well in the
new drifts and cross-cuts, and new
ground has been opened in the Smoky.
'The east ore body is a very i'm
portant one. 1t is quartz porphyry,
and metallurgically valuable for its
freedom from aluminium. 1t has a
known width of 40 feet going north and
in that direction it mas an average val
lie of - per cent copper. a cross-cut
east from the end of the drift extends
so feet in very GOOD Q-s-yielding 9.73
per cent copper:-Yfle grade improves
going to the east and the last 30 feet
reaches an average of 1896 per cent.
In the main cross-cut the ore averaged
4.52 per cent for length of II feet,
but the width is unknown. The aver
age Of eleven assays taken in the total
length of 40 feet, is 10 per cent.
Already it has been developed for a
length of 40 feet and a width OF 10 feet
for half that length. 1t is fine ore, free
from iron sulphuret, carrying its cop
psr Us pure sulphide. 1t is the rich
est large body of sulphide ore yet
found.
''From the mouth of the Boulder
tunnel the distance to the present face
of the east ore body is l ,067 feet, and
of this 420 feet is ore. As to value, 30
assays taken in ore of more than two
per cent grade, gave an average value
of 5.S5 per >nt. Later developments
raise the avooage of the Boulder Shan
non level to per cent"
A resume shows as follows:
In the Smoky tunnel, ~ samples
average 4.S1 per cent of copper; IN
the Mexican tunnel, Is samples average
SO per cent copper; in the Boulder
tunnel, "A samples average 5.s5 per
cent copper.
At the mine, Philip Wiseman, form
erly of the Colorado Mining & Smelt-
ing company, now one of the companies
of the Amalgamated Copper Co., of
Butte, Montana, is manager, and asso-
ciated with him is p. o. Wells, former
~ metallurgist for the Boston & Mon
tana company and the Anaconda Cop
per company. VIM. Chino, man of
much experience, is the superintend-
dent of the miE~pr
1t is first-claS. property and seems
destined to be great copper producer.
As Mr.. Church said in his second re-
port, 1.-THE Shannon is q very valuable
mine, with wonderfully large pro-
portion OF available ore"