Essex County herald. [volume] (Guildhall, Vt.) 1873-1964, 1890-09-12

body OF water connecting with
Portage Lake and called Torch
Lake are the great stamp mills of
the Calumet and Hecla, the I'ama-
rack, the Osceola and the Quincy
mines, producing about eighty
millions of pounds of copper per
annum, while on the Portage Lake
are the old stamp mil of the Qnin.
cy which has done good service for
nearly forty years, that of tho
Franklin, the Pewabic and the AT.
lantic, while near at hand is the
stamp mill of the Huron mine, aud
several Others, now idle. On Por-
tage Lake are located the smelling
works of the Detroit and Lake SUI
perior Smelling Co., the Tamaraok,
Osceola Smelling and Manufacture.
ing Co., and near By on Torch Lake
are the smelling works of the Calu-
met and Hecla mines. In these
several smelling works is smelted
all the copper produced in the cop
per region amounting now to about
ninety millions of pounds annually,
but increasing with considerable
rapidity and especially how as the
present great demand for the Lake
copper stimulates production and
exploration in all directions. The
mineral range as it is called is in the
form of ridge or whales back,
about three miles wide at and about
Portage Lake, and bounded on each
side by a brown sand stone. 1t
rises in places 10 about six hundred
feet above Lake Superior and is
composed of layers running length.
wise the range, called in the language
of the country belts and lodes, all
dipping toward the north or nearly
so, with dip or incline of SO to So
degrees from the horizon, the dip of
the famous Calumet and Hecla
mine being about SO degrees, while
=, the dip of the Quincy, the Pewabic,
and the Franklin, at Portage Lake
is SO to So degrees. In the language
of the country the word belt is
used to designate an amygdaloid,
while the word lode is used to
designate a conglomerate. The
conglomerates vary very much in
fineness and when mineralized bear
copper much more evenly than
the amygdaloids, but the whole
copper country bears copper in spots
and lunches, and these punches in
the amygdaloids are much like
I islands in crooked river, the vein
being likened to crooked river.
The Calumet and Hecla mine seems
to have been opened near the center
of an immense deposit of copper,
several thousand feet in length on
the surface and extending with ap.
parently unchanging richness to
great and unknown depths, but
growing poorer at each end OF their
mine, until at no great distance
from either end of their territory il
5 ceases to produce copper in paying
q quantities. The Osceola mine was
, first opened at the south end of the
/ Calumet and lIecla, aud for a time
r was quite rich near the surface but
' soon gave out entirely. Just at
e this juncLure, however, they discov
g cred mineralized belt of amygda,
loid not far to the east of tn,
$ Calumet and Hecla comglomeratc,
t and that they have since worked
, with fair success. The experiment,
!, of the Tamarack in sinking a down
{ right or perpendicular shaft tc
=. strike and work the Calumet and
h Hecla lode outside the limit of the
e Calumet and Heola territory, al
e others having followed the lay Of
, the vein from the surface, was q
r bold novelty, involving an cxpen.
!, diture of much money and as il
a aimed to strike the lode at muct
o greater depth than any of the
n workings on the range, it also in
:. volved the question of the contin.
:. uance of the copper deposits TO
{ greater than known depths, and SC
y became of public interest. Th,
q lode was reached at about 2275 fee
v perpendicular and found to possess
the copper and the characteristics
@ it had above, and proved also tina
f the dip of about $50 from the
@ horizon continued. This experiment
O was also interesting to the SUDDEN
g of the copper deposits and the coun
e try, as the shaft in its descent Gu
o all the belts and lodes within it
e rannn Thnao hnlia and lndna uar,