The copper era., 1903-03-26
yer p
FIRST NATIONAL BANK OF CLIFTON
epd o satfatoyn

are wealthy men. Mr. Dunham ha
kept up systematic development o.
this group for the last two years an
now has a well equippe property
with several thousand feet OF under
: ground work. The main double trac
= tunnel, being driven in a sOuthwes
a erly course. is in about 1850 feet alon.
r the strike OF the ore belt, the work be
: ing in granite and porphyry, the min
erAlization being in both. The or,
, here is largely a copper-Iron sulphide
with some copper glance. At the tun
mel entrance i steam boiler and en-
gine, which operate a generator. the
latter supplying power for Durkee
; electric drills, with which the most OF
the drilling has been done. Above
the main tunnel there are several adit
levels. On the southwest side Of the
group are the Ollie shaft and tunnel.
the former sinking $50 feet at the tun-
mel entrance, with drifting in progress
in opposite directions from the bottom
Of the shaft The tunnel has been
driven I,200 feet in northcasterly
course, or in the direction that would
eventually meet the main tunnel being
driven from the opposite end of the
group.
SIERR DE ORC.
This property comprises group of
| fifteen claims. belonging to the Sierra
| De orc Gold Mining and Milling Com
pany, organized by Dell NJ. Potter Of
| Clifton, who previously controlled
these locations Associated with Mr..
Potter in the company are Peter Nor
row Of Albuquerque, Ben NJ. Crawford
Of Clifton and others. The property
Is contiguous to the groups Of the
New England Copper Company and the
Clifton Consolidated, lying between
those groups and the San Francisco
river. The Sierra De orc holdings
include fve-acrc millsite on the
river. On the group are series OF
parallel quartz veins, having north
east southwest strike through a gran
ite formation. Two Of these veins are
specially well marked, whose footwaIls
are well defined, the hanging walls
being somewhat broken and consider
ably mineralized. The actual miner
allied portions of these veins range in
width from twenty inches to five and !
six feet. The ore comprises a free /
milling quart, associated with pyrites. |
which also carry gold. partially free /
uuc; surr;tC-: ut1cu ur
the pyritic ores are OXidized. Some
of the samples taken have shown lead
carbonatcs. These usually came from
near the surface, where oXidiZation /
had taken place. Nine samples as
sayed at the Arizona School OF Mines /
showed an average value Of S23 gold /
per ton. While this group is within |
the same general belt as are the New !
England aud Clifton Consolidated, the /
ores from the Sierra De ORC radically |
differ from those of the other two /
which are chiefly copper. Prof. w. |
Il. Blake, .who made an examination, f.
OF the Sierra property, recommends |
its further development by system of /.
tunnels aud suggests anal lgamatiOn |.
and concentration, with cyanide treat /
mcnt of tailings. as the most suitable |
method of recovering and extracting /.
the values from the ore.
POLAKIS NJ. AND NJ. COMPANY.
This company is made up largely of !
N-i ,,,pI.,
Schmitz being president; J. w. Span
gcnberg, vice president; y. Il. Ham,
treasurer; y. 5. Eylar, secretary; +. |
L. Beauchamp, general manager, with |
J. l.. Logan, u. G. Wolfe. f. NJ. Will |
liams and l.. f. Sweeting as directors. |
The company's property, comprising |
nineteen mining claims, lies northeast |
from the New England ana Clifton /
Consolidated and is clearly within the |
same mineral belt as those two. The |
Dorsey gulch and two miles west OF /
the San Francisco river. From this |
gulch the group extends southwest |
erlv, covering about 1, 900 feet OF the |
strike of the belt. The country rock |
here is granite, the naturalization |
occurring along and within porphyry |
dikes, which run parallel to each |
other. The ore is much oXidized and |
leached out at the surface, but slightly |
below this is kaolinized porphyry,
carrying copper glance and oxides.
Associated with this is a quartz bear
ing free gold. At still greater depth
the porphyritic gangue carries more
OF chaIcopyrito, together with gold
and silver, the gold occurring in the
sulphides and disseminated through
the quartz streakS. These holdings
cover that portion OF Greenlee noun
tain through which these porphyry
dikes strike. That mountain rises
abruptly about 800 feet higher than
the surrounding country and on its
sides the faces of the dikes and veins
are very conspicuous. On the north
end of the group is what is known :
tho Rlack prinra lode which strikes