New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1882-03-21
1tllnlua.
PROFESSOR CHADBOURNE'5 REPORT
UPON THE PROPERTY or THE
BERKSHIRE GOLD AND SILVER MINING
COMPANY
OF DAKOTA.

ALBAyY. y. Y, March 2, 1882
To r. BRUCE CHENEY PRES AyD J. BouToy CROSBY sECY
orTHE BERKsiHEE CONSOLIDATED GOLD AID SILVER MIN.
ING COMPANY.
GENTLEMEN: In accordance with your Instructions have
visited your mines Hal storm" UoMcWard Bound
and silver Boil Bald Mountain. in tho White Wood
Quartz Mining District Ot Black HIS Country DeadwOod
Dakota and beg leave 10 present the following brief reports
As to geographical position. these mines properly de
scred in tie prospectus othe berkshire Cons dated Gold
and liver Mining Company II Is therefore necessary for
me only add to the description there given such items Of
information bear upon the value Of the prop
erv Bald Mountain deeply covered with snow that
no examination Of the IIomcward Bound" silver Bell"
coud made except in the openings of the veins The
surface over the Han storm was free from snow
The groupings Of the cou!d be nearly
the entire length the claim II is remarkably stroug upon
tic surface and the tunnel shafts indicate very strong
vein Of quartz How Idle the vein will prove to be could
not be- determined in case had been pierced u the
hanging wall The vein is cononabe to tie strata Of slate
which are nearly vertical dipping slightly to the east Tho
course nearly north and south aud the east
T. dyke porphyrv which Is likely TO be the hanging wall
On the side Of this vein tunnel has been run l2o feet
At tbe end Of the tunnel is shaft sunk 81 feet This is
nearly full and could no. be examined In centre Of
claim s shaft 40 deep other shafts and cuts
the outcrop all strong VEIN The ore from This
did not in the assay equal expectation sample giving
only al - in gold silver the and the other
81 10 60 In silver with gold The latter
many small fragments knocked AZ random from the roof
OF the tunnel where il entered the tho shaft
Tho Homeward Bound" has tunnel ~ feet, ono shaft
feet and another 80. As the mountain covered with
snow shafts and all the indications had OF
the direction well of the strength Of the vein AL tho
cuttings were completely ia vein matter that 1t is im
possible for give description OF the vein. OF the
wall, the There evidence Of abundance Of
material where made and taken from the
dump $4S ia Ia silver and s23 p In god
or al 80 IN all
The silver Bell short tunnels 40 md 2s feet and
two shlfs In depth. These cuttings
dictate the dire ton Of the which does De
more than two wide when opened. and
Judge the strata instead OF conforming to them hay
Ing this respect fssure This shows
vein material diverse material varying from hard
quartz Ia heavy nged with carbonate copper
md proving 10 be Of exceeding richness. Native
coud be In some Of the specimens but probably
most Of the silver suphde The assay gave the astonsh
ing thousand nine hundred and sItysiK
and seven hundred and seventy live onethousandhs of
ounce 9e8775 OF silver and five ounces aud eight hun
drsd and twenty thousandhs OF 5S26 Of
gold eauang 81 023 ID In gold and silver to the ton As the
specific gravity OF this could not be less than eight