The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1906-09-10
RAPID GROWTH OF
THE BOSTON CON.
Company Has Done Wonders
With Property Located in
Bingham Camp.
NOW AMONG MOST
PROMINENT OF STATE
Ore Bodies Of 0Xidized Gold
We're Discovered Very
Many Years Ago,

Only about four years ago the Bos-
ton Consolidated was simply name.
Besides its then little appreciated mass
of low grade porphyry; 1t owned group
of old gold mines which II had been
prospecting for copper since 1897. Ex-
tenslve prospecting had been done and
several adits had been driven, but they
had not been driven far enough to catch
the ore body, Considerable development
had also been done upon some stringers
of rich copper ore occurring In the foot
wall, but these did not make into ore
bodies OF any great size, says the Engi-
neering and Mining Journal.
Now this company Is one of the most
promising In Bingham. 1t has begun
the construction OF a 3000-ton coucen-
tratiDg plant TO treat Its low-grade
copper ores and 1t now has a large body
of sulphide ore averaging per cent
copper and 81 to $3.50 in gold blocked
out, AT present 1t ships $50 tons Of
this ore TO the Bingham smelter at Muir
ray, and is only waiting for the compile
tion Of the plant of the American Smelt-
ing and Refining company at Garfield,
when 1t Will ship about 1000 tons day
OF this ore
In 1879 the old Stewart ore body OF OK
idized gold ore-the oxidIzed Gaping OF
solidated-was discovered, For several
years 80 stamps treated this gold ore
from the Stewart No. 1 and No. 2, but
in 1894 the mill burned down. Nothing
further was done until 1897 when the
present company was formed. Consider
able prospecting was Immediately un-
dertaken, but in vain. The company
finally learned from n miner, who had
worked in the old Stewart mine, that in
a certain one OF the old tunnels a con-
siderable body OF sulphide ore had been
found, but these workings bad been
abandoned as the milling ore near the
sulphide was too base and would not
amalgamate we'll. This tunnel had caved
long ago. but the company found the
rails marking the location OF the old
tunnel. The caved rock was spilled
through. following the track in all It's
crooks and turns, until at its end the
sulphide ore body was found. Since then
large body Of this sulphide ore has
been developed, and last October a sec
ond ore body-the upper channel ore
was discovered in the oyerlying lime
stone.
Peabody Ore Body,
This sulphide ore occurs bedded with
the strata The lower, or Peabody. ore
body, occurs at the contact between the
QuartZite and the overlying lmestones,
Separating this from the upper channel
ore body Is a stratum Of limestone about
80 feet thick, but varying according to
the thickness of the Peabody ore. Both
thes ore bodies were formed by replace
ment IN the limestone. They run east
and west and dip to the north at an
angle varying from thirty to fifty de-
grees. Two approximately parallel faults,
about 600 feet apart, having a northeast
trend and a dip OF about eighty degrees
TO the south and east, cut of the ore
body. The combinations have not been
found as yet.
The Peabody ore body has been opened
up for about $50 feet along It's strike
and is about 240 feet wide, its thickness
ranging from thlrty-fve TO sixty-1ve
feet. The upper channel has been de-
veloped for about 400 feet along its
strike and Is sixty TO sixty-flve feet
wide. 1t varies from thirty TO sixty feet
In thickness. The whole vein is a mass
of iron sulphide. carrying some chalcopy-
rite and a little cbalcocite and pyrite.
In few places punches OF more silicious
ore occur, The content in copper varies
considerably in different parts OF the
mine, being from five to six per cent and
even more In some parts, but the ore Is
so stopped that the shipments average
about three per cent copper, This ore
carries an iron excess of fifteen to eight
cen per cent. for which payment is made
by the smelter.
System of Mining.
The sulphide deposit is opened up by
three adits, viz, the Armstrong No. /,
2900 feet long; the Peabody 5000 feet
long and 100 feet higher; and the Top
level, 100 feet higher, in which the sui
phide ore was first found. The Arm
strong No. 2. which is $50 feet below the
Armstrong No. /, is in 300 feet Ore
was struck IN this tunnel, but nothing
has yet been done on this ore.
The ore is mined by system of square
sets OF peculiar framing, The timbers
are framed In Oregon. whence they are
received ready for use. All the ore is
sent by chutes down to the Armstrong
No l. where 1t is hauled by n fifteen
horsepower Westinghouse electric loco
motive in trains OF eight cars to the 600
tone ore-bins placed along the Copper
Belt railway tracks near the portal of
the tunnel, The cars are 16 cubic feet
in capacity and hold about one and one
half tons OF ore. The ore-bins are be-
ing enlarged 80 that they Will hold
1900 tons. Sullivan drills, two and one
quarter inches. are used IN the slopes,
but larger ones are employed In devel-
opment work. A man on a "chlppie"
machine can drill and break a set OF
ground q day, which is about twenty
tons OF ore. The ore is soft and the
SStS nave W DS iu6btu. lMc-luCu DldHhS
are used for this and also for flooring the
sets. The Limestone hanging of the upper
channel Is strong, but the limestone be-
tween the two ore bodies Is rather soft.
No filling is used except where neces-
sary to steady the stope In the upper
channel. This waste filling all comes
from development work. for no waste
occurs In the vein.
Chamberlain Cough Remedy Acts on
Natures Plan.