The Idaho Springs siftings-news., 1906-09-08

the vertca! depth attained by the Hoosac
tunnel will be nearly 1000 feet. Belle
vue mountain is traversed by a complex
vein system, and geologists agree that
many of the smaller veins and feedt 70
will with depth become usited with the
big hssure or mother lode adding to the
enrichment of the latter, as it has bees
invariably found that these functions
make the richer ore bodies in the big fs
sure veins of the district
The breast of the Hoosac tunnel is now
into the mountain in the neighborhood
of 1000 feet. Since the resum ption Of
work on the breast not a shift has been
lost in driving the big bore into its objec-
tive territory. While the work was sus-
pended the portal of the tunnel was tim
bsred solid, and twelve-inch line Of
ventilating pipe was placed along the
roof of the tunnel from the portal to the
breast. This is connected with No 7
Sturdevant exhaust fan, operated by an
8-horse power gasoline engine. The com
pressor plant is located short distance
below'the mouth of the tunnel and is in
constant operation. Two water Leyner
machine drills are used in the breas, of
the tunnel and a Hardsock stopping drll
is being used in the Rising Sun stope.
The combination of such a meritorious
property as the Hoosac tunnel and the
able management of Mr.. Henry P. Dick.
inson, make of the Hoosac tunnel one of
the best mining propositions in the dis
trict. The company owns outright Ave
patented claims on the south and west
slopes OF Bellevue mountain, together
with 4 twenty-five acre placer claim on
which is located the portal of the tunnel
and ali necessary equipment to drive the
tunnel . distance of over a mile As
soon as the big Hoosac vein is reached
the course of the tunnel will then follow
one or both of the walls of that lode
which will result in = considerable saw
ing. Driving on vein can be done for
forty per cent. less than the cost Of driv.
ing a crosscut tunnel.
Manager H. p. Dickinson, who is in
charge of operations. is an experienced
gineer. He not only has the theory re-
csived in technical education, but he
has had several years of practical expe-
rience, which latter is a valuable asset
The Hoosac Tunnel and Mining company
Is most fortunate in selecting a man of
his ability to carry out the great enter
prise.
While engaged in enlarging the Hoosac
tunnel for the reception of the line Of
vertia,ing pipe, Manager Dickinson
opened up fine streak of ore in the roof
of the tunnel on the Rising Sun vein,
one of the five claims owned by the com
pany, several hundred feet in from the
portal. The ore continued along the
foot wall for over 400 feet and numerous
assays gave an average OF $4l 90 per ton
After the work of hanging the yentilating
pipe had been completed, Manager Dick.
inson decided to put couple of miners
at work on this ore, and was greatly
pleased when the first round of holes dis
closed streak of gray copper from ten
to eighteen inches wide, which will re.
turn close to $Ioo per ton. This ore has
now been exposed for thirty feet along
the back of the stope, and the manage
ment will continue work at this point
with number of miners. 1t is the in
tentiou to un nwater the old shaft on the
Rising Sun vein when it can be done
without interfering with the work in the
heading Of the tunnel. The shaft is 100
feet deep and has two short levels, show
ing what is probably the western coutiu.
uation of the same ore shoot a. opened
iu the tunnel.