The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1869-12-04


peed the company expect TO bring hfts IONS OF ere3
70 ine surface oaly. An aerial railway Deing coa-
snat 70 inc loot OF the mountain The new dressing
very r,on ,-.-.,y unisnsu, so fna' ~.
Ihe w. III FUN operation.
: foregoing alancc ut o iiccW OF the most promi-
loaes In the vicinity OF Georgetown VIII serve
TO show the character OF many of The mines thaU
cluster around this silver centre. hot OF hpen-
did odes are being opened and developed, aliu new
discoveries Of valuable veins are beng mace almost
every day The Caledonia being careTuly explored.
The main shat has reached depth OF eighV |
depth shall have been gained handsome prchis VIII be
realized. Selected specimens OF the nnest Caehona |
ore nave shown an assay value OF 81 800 per ION:
Some OF the ordinary ores have been treatel 10 ma
their market value--one lot BY Ba back Il Company,
III Newark, and another by Huepeden COMPANY.
slos In com per ton The Belmont lode - beng
developed on IAN extensive scale. Two tunnels are
beng bored into Mcclellan mountain. The upper
one Is now ABOUT 26O length, and tie lower
one when 200 feet below it, has already reached
OF sso iee re nY Iee az
specimens Of the Belmont ores give various SILVER
Values from 500 to s. 900 Many tons OF orc nave
been taken out and piled up for future treatment
Reduction woras are soon TO DO constructed An
olner lode, known as Belmont No. 2, promises
10 be scarcely less important. The Hancoc and
Wilson lodes, botn evidently valuable. are now be-
ing developed. The Snowdriit, on Republican
mountain produces elegant from several shafts
winch are being sunk At rapid rate, ana by next
spring Is expected to furnish SUFFICIENT to supply
reduction WORKS Of ten tons capacity per Gay. The
silver IN ton averages over i0J ounces. The Ser
ling develops many or the cnafactdriStic3 or tue
snowarlft to which !. = continuous. Shafts are
narkably productive. The fist class ore now at tho
mine valued AZ $1,000 per ton; One half OF the
Sterling lode was recently purchased BY u Plill-
delpnia company, and the 0tner IS owned by Mi.
Bellamy, OF Georgetown. the sunburst, Madison
coveries with undeuDteu indications OF ricn results,
on Sherman mountain the Cascade already ranks
among the producing mines. some OF ats selected
ore, treated by Huepeden & Co for experimental
purposes, gave yield OF $780, coin value 10 the ton
the Bush vermont ana noper M he. loaea appa
mountain. Tney nave not been developed yet 10 any
great extent. the HeaIon IS q new ana valuable
developed by shalt which has been sunk 10 a depth
of fifty feet. Assays OF three selected specimens or
lively v silver values Of 60 sS4ss and sIs,4sS %
per ton But, OF course, no such results as these
can be realized out OF the nine. The Sig Indian
loue Is being developed by an adt east the dis.
covery shaft, and the indications are mat 'heapn
cannot even Catalogue all the lodes in this splendd
silver region. There are moro lodea than men In
the Georgetown district; Taeir name IS legion and
silver track for silver palace cars across the Cont
nent
the objects Of the great tunnels that beng porcd
INTO Leavenworth and sherman mountains. Ihe
Marshall tunnel already runs INTO Leavenwortn
Mountain q distance OF nearly 400 feet. The work
Is done by hand at q cost oil twentyeght dollars per
according 10 the terms OF the existing contract the
complexion OF wiAcn Will eaye the tunnel III q dl5-
lance OF eoJ feet. Men are working on it day aud
night. The intention IS to carry this tunnel
completely through the mountain, distance OF over
$500 1eet. 1t will be over 1910 teet IN length and
over 900 feet In depth when under the summit oil
the mountain IL VIII cut at right angles many Of
the most valuable lodes on LeavenworCn. The exca-
waited rock IS taken out upon u tranway. General
Marshall, VINO conducted mo into his tunnel and
explained the mammoth enterprise believes that
IL wil prove one OF the most important means OF
developing the wealth that Is hidden In That
mountain. Nor is no alone IN that opinion. Where
great depth IS desired and tunnels can be run, the
toAx
soon seen by any The Helmick tunDe, also IN
Leavenworth mountain, IS running H. east OF, par
alei with, aud 200 feet deeper tnan the Marshall. IL
IS intended TO pass under Tho summit at depsh OF
l. 200 feet In distance OF over 2 COO feet II carried
1t VIII pass under the left hand fork OF south
Clear creek, 400 feet below the level OF
the water ana nn'o G aan ,aet mountain Its
SHALL it Will cut large number OF important lodes
IN It's progress tnrouSn the mountain Tue Lynn
Lynn last summer, for the purpose OF cutting ms
eastern extension OF tue Equator lode. This nas been
accomplished. The vein was struck waen lac
tunnel reached distance OF 100 feet. rue VEN
was found to be tWenty-slx 1eet wide where
the tunnel penetrated 1t. drlit Is now
being carried westward IN search or vein OF more
solid &C greater depth. 1t Is now intended 10
drive this tunnel like Others pleey through
the mountain. Many OF tue spendld lodes OF Lea
venworth will be cut by thus importanG enterprise
the narshai 10 to Ieavenworth. Il "a belng borea
through the very hardest granite, syente and sye-
mite greensboro. Inc rock Is so tenacious that
long In common granite VIII here bore only few
Inches before II needs to be resharpened. The style
use In the Hoosic tunnel Mr.. Burlegu himself
superintends tho operations. Inc machine Is
mounted on platform which runs on rails. Com
pressed air the motive power that drives the drills
II is conveyed TO the machine through pipes from
drilling Is about ATTY dollars per foot ana t 1es ave. "a
rage distance gained has been about forty ieet per
month. Two drills are now 1t work, and two shifts
poyed, aud three shifts or SIX men each. Opera
lions will then be carried on continuously day aud
night, at the rate OF seventyhvs feet OF tunneing
per month. The Bureigh tunnel Is now about $50
feet In length. 1t VIII cut in coulse the richest
odes OF sherman at different depths. At q distance
Of 1000 feet from the mouth It viii cut the Terrible
800 feet In depth, and at distance OF $500 feet VIII
pass under the summit OF the mountain at depth OF
5000 feet. The Goss tunnel IL being driven
into sherman Mountain at another point By
the Colorado Silver Mining Company which
nas already reached . distance OF 2oj feet.
Hitherto the work has been performed by
Three Burlezh drills are being put il, ana the
work will soon be pressed forward az more rapid
being bored into Sherman Mountain. Tic Morris
tunnel Will aid the development OF the SILVER veins
in Columbia Mountain. The Brown tunnel, In Brown
Mountain, Will reach respectively, at different dis
tances and depths, the Brown, the Com aud the Lily
odes, as well as many Others These the tunnels
that are now In successful operation. l must omit
the mention OF many others which are In contem-
pston; and also, for the present, aluson to other
mines and mills in the surrounding region, rs well
as to the mineral productions OF Empire ana OF
Central and vicinity.
cannot close, however, without few 1nal words
IN favor Of the tunnel system The contour Of the
mountains, which rise from 1000 to over 900 feet
above the level OF the valleys some nearly perpen-
dicular, but most OF them at angles ranging from
twenty-five to forty-fve degrees 10 particularly
favorable for tunnels. The strike OF the veins with
tho trend OF tho mountain enables them TO be cut at
right angles by the tunnels ct depth to which the
sinking OF shafts would be exceedingly expensive.
Levels and inclnes can be run In different directions,
from which large quantities OF ore can be taken at
comparatively trinins cost and run out OF the tan-
nels upon tramways. This mode of conveyance
superssdes the hosting OF ores In buckets out OF
Stats and the expense OF steam power attending It.
as well as the cost (which is heavy or hauling
from tho mouths OF the shafts to tho mills. The
nels are run In on a slight incline 80 that th3 water
flows out along the gubter5 on each side, aud the
mine ID self-drainiDg This does away with the
Inconvenience aud expense OF dralning as In snafts
by means OF pumps or buckets Altogether tho tun-