The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1909-03-02
OHIO COPPER
CUTS VEIN DEEP
Mine Is Now Proven Down to
the MaScotte Tunnel, 400
Feet From the Surface.

The most important disclosure in the
history of the Ohio Copper company s
mines at Bingham was made Saturday,
when the 400-foot copper bearing quartzite
lode was tapped in the cross-cut from the
raise above the Mascotte tunnel level that
was started some few weeks ago for the
purpose of making the first avenue
through which to mine from the tunnel
level. a twenty-pound sample of the rock
was sent in TO Manager Colin Mcintosh.
Before he could see just what it looked
like it was necessary to wash samples
tnat were afterwards assayed and found
to contain Lie per cent copper.
I know the rock is better than that"
explained Mr.. Mcintosh yesterday, be
cause In eliminating the fines and wash
ing the chunks for inspection considerable
OF the clean chalcopyrite particles was
lost. As it is, ii shows that the rock on
the tunnel level is just as good as it is
on the 800, the deepest workings from tine
surface in the mine. 1 have no doubt
that the average will be found better
than 1t is above, as the monster lode is
opened, but We shall have no KICK to reg
| ister if 1t never shows anything better
than this sample assay certificate indi-
Gates The significance of the showing
rests in the fact that we now know that
the great lode lying between the two fis-
sures, the AIS Well, on the hanging wall
.
wall side, is uniformly mineralized for a
depth of 1,400 feet on the dip and approx
mately LOO feet vertically. We have
never doubted for an instant that such
would be the case, and now we know II
absolutely. 1t means that the Ohio Cop
per company Is now practically certain of
l4-GJJ,U0 tons of ore that will average
close to per cent copper, with a little
silver and d little gold, available for most
economical mining Every pound of this
ore viii be broken and moved by gravity
to the Mascotte tunnel level and from
there be delivered to the mill at a cost of
15c a tom
rote that il would take the Ohio Copper
company's new milling plant twenty years
to work up the amount of ore thus made
available, without counting a pound that
Is sure to be developed outside of the
present proven area of the company s
60-acre domain. 1t means. also as shown
by calculations made by james MacFar-
lane, the president of the company and a
prominent mining engineer, that the COM
rany can, by working eighteen tons of
ore into one of concentrates, and by eff
tecting a saving of 20 per cent of the
values. net S1.4f on each ton of crude ore
or S25-SS on each ton of concentrates on
a l5c copper market. His calculations were
Dased on ore carrying an average of 1.60;
per cent copper, .O5 ounces silver and
.V)o ounces gold per ton, figures that are
sure TO be found too low. In other words.
the company, with its present mill equip
ment. will be able to earn in clean money
better than $4,000 a month. OF not far
from SJ-SOG,OJ0 year. Giving the mine q
fair snake, not an engineers cold-blooded
reckoning, the Ohio Copper company
ought to produce $4,000, 900 net during the
next twenty years from the ore now
proven up in its property.