The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1849-11-11
TWO CENTS.
In,.res,,ng from tns Conner nc.,o.

A correspondent of the Cleveland (O.9 Herald,
OF the 9th inst, writing frsm the copper reson Of
Lake superior, under date of the nth ult says;-
heretofore the country in the vicinity of Ontona-
son flver mas been kept back, and has attracted
but little notice. IN consequence OF the unfavorabe
reports that have been made respecting the nature
OF It's mineral ground, which are now proved Ia
have been uniounded, by the successful operation
and prosperous condition of several of the mines
now working, viZ.;-The Minnesota mine, lying
two miles N T.. of the river, IL miles from its
mouth, on direct line. Under the management
OF > o. Knapp, the company have shipped about
nifty tons OF copper this season, which an extra
ordinary return, considering the time the mine has
been worked, the small amount that has been ex-
pended and the present depth of the workings.
ms company are at work vein running
nearly east end west, and dipping to the north at
an angle oil 90 deg, that showed evidences of hav-
ing been worked hundreds of years ago by a race
OF people now extinct The is from three to
SIX feet wide at the top, and exposes its out crop
Tor over one mile In length. A great part of the
distance there has been nearly continuous ditch.
dug along the surface of the vein by the ancient
miners, from six TO ten feet deep, and with now
and then shaft or hole dug still deeper. The
deepest one that has yet been examined does not
exceed - ieet In the bottom OF these bitches and
holes, wherever they have been cleaned out, are
found masses OF copper imbedded in the rock;
around these masses are found the stone hammers
mat The old miners worked with. The pr. sent
workings of the company consist principally of two
shafts sunk on the vein, - and the other 30
ieet deep. In sinking them, the vein was found to
scend. The shafts $50 feet apart, and are
connected by drift level at the bottom In
driving through The drift masses of "copper" averag-
ing from four to eighteen inches In thickness,
found along the wall OF the VEN, irregular inter-
ydls-not one sold mass or wall of copper, as
had been represented-varylng in weight from
rev POUNDS To many tons From this DRIFT tho
% tons spoken OF as shipped were taken, and these
Is plenty more still in sight. They have lately COM
menced sinking shaft $50 feet farther west,
and at It's present depth, IL isat, there has been
some 30O lbs. taken out, and there 10 sheet of
copI setting in that now shows five feet in length
at the bottom of 1t. They have 10 men at work,
and are increasing the number as fast as they can
get accommodations ready for them. From pre-
sent appearances, they will be able TO ship from
three TO 400 tous next season. The Adventure
Mining Company. formed this spring, is located five
miles east OF the Minnesota, on the same range.
They have had few men employed this summer
In exploring their location and cleaning ont the old
diegngs that are scattered over u. They have
invariably found copper wherever they have made
an opening They have now a force of six men
employed in running drift on one of their inns,
commencing at It's out crop, about 200 feet below
the top OF the hill through which II runs The vein
stone Is thicky impregnated with "copper" from the
commencement. The Astec Company, ad dining
the Adventure on the east, have a splendid show Of
copper on the surface. They will probably keep
but two or three men employed this winter The
Algonquin Company, and the Douglass Houghton
Company both made good discoveries some three
years back, but Tor some reason, they have let
Them lay idle Mr.. Douglass is now expected mp
10 resume operations Isis fall This includes
all the mines now in operation on the east
side OF the river. On the west side the Forrest
Company, formerly the Ontonagon Copper Com
Iany, have made new discovery within n few
days back, II miles from the river. Mr.. ". III.
Stephens, the, agent OF the company here, in ex-
plornc, found some ancient diggngs, and upon
having them cleaned out, they proved, as they
usually dc, to be on vein. have not seen IL,
Tut understand that It is a fine prospect. They
have from twelve to fifteen hands employed. The
OHIO Trap Rock, and other companies on the west
side of the river have good shows, but are not
doing much mining al present. There will be
large amount of business done here next season,
and the importance of harbor for large vessels
begins seriously TO be felt The mouth of this
river s the only available point tor a harbor on the
coast for 20 miles each way. IL is obstructed by
send bar at its mouth, which there Is generally
Fix feet OF water; inside of the bar there 10 water
enough for the largest class of steamboats,.