LAKE SUPERIOR COPPER MINING.
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As many Of yeur readers interested in mining enter
prses Isle Royae in Lake Superior, you will confer ia
by publishing the following from letter to the
Treasurer of the elsie Royae Union Mining Company
dated Isle Royole, August 7, ls47:


al arrived on the Island on the 2sh day Of July Since
then have been to all of our locations and it affords
much pleasure state that prospects highly favorable
On location 3 have found the most favorable results.
commenced at the point where work about
the st April but the breaking up of spring compelled tc
stop work. and it not resumed during my absence until
the st July The vein since then has been continually i'm
provng during the last week we took out several large
pieces of copper, weighing between fifty and hundred
pounds, and ven-stone is taking fine appearance.


"The United States Geoogist DR.. Jackson spent several
hours examining few days since. Mr. Blake thorough
y scientific and practical man. the employ of the Ohio Isle
Royae Company, expresses himself very highly pleased with
it. The vein is a compound of epdote and chloe is Soft
and would grind easily carrying four strings of "copper" and is
three and half feet between the wallis which are both
them perfectly defined and regular The vein can be traced
to considerable distance by its depression


"On location 81 we have also very good prospect.
have there three hands work on very large and we'll
defined ven carrying copper in very considerable abundance
They have hardly opened it yet but have already taken out
handsome specimens, weighing from four pounds
From the character Of the vein and stone lam satisfied
that it will turn out WELL


The locations sold to the Lskow Company also pro-
missing we'll have examined the silver vein lately discover
ed location 5 and find TO contain imbedded in the vein.
stone much "copper" and silver makes its appearance in almost
every piece knocked out The vein is large and massy


:" am than satisfied OF the immense value
Of our property here and that nothing but labor wanted
prove that value