The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1899-10-25
Probable Treadwell Mine at the
Back Door Of Seattle.
THIRTEEN OUNCES OF PAY.
Surprfsinx Ciean-up From the New
Golden Tunnel MiIi-Prohfabts
Hun of Fifty Tons of Granite Re-
fuse That obstrncted the En-
Discovery of . Free Gold Ledge.

President John Tnomas Of the Golden
Tunnel. has returned from the mine
after having supervised the starting az
the new mill When he left the plant
had besa In operation 81 week, and. bar
ring the experiences with puIleys and
beitinss incident ~ the adjustment OF new
machinery. TIA. mill had gotten into such
smooth running order that no gold at ali
was ezcaping into the taiIings-
Yesterday AlbeF, Finn. of the en-
ployes OF the m!ue. reported At the COM
pany's office in Seattle the result of the
nrst run. II WAS surprise TO Mr.
Thomas and his associates. AT the
mouth Of The great cave were about fifty
tons OF granite debris which had to be
cleared away before the deposits In the
cave. or tunnel II y described. could
be mined II WAS decided to pui this
through the mill. as ready means Of de-
termining whether the country rock car
ried gold In paying aaanti,ies. a. In sew
erai instances encouraging assays had
been obtained from t. From this run OF
fifty tons the cleanup off the plates was
thirteen ounces leaving the concentrates
for a further profit. With everything fn
apple pie order. this would mean less than
two days run on n character of material
not Mt all included In ths possible product
Of the mine and found 10 exist III lmmeas-
urahie quantities. What Is more crafty
bish Impeding operations In the tunnel
was found a transverse ledge. tn places
twelve feet wide and carrying free gold.
On the floor Of the tunnel. broken down
from tho roof and sides By nature. are
at least 4eo1 tons Of orc ready for the
mill, the present capacity ~ which Is
thirty tons daily. with like tramway
capacity. 1t Ii estimateft that during
the major part Of the year the water
power available viii take ssre Of 30 tons
n day ard the Vulcan Iron Works have
contracted tn put In aerial tramWay
before winter equaiing that capacity. II
II not likely. however. that the plant will
Dr. enlarged until spring, The mill IL
the Montgomery pattern. or what might
he termed properly the perfected arRstra
process n has been adopted by the
Anaconda Company. Montana and all the
tests Indicate that II IL everything that
can be desired for the treatment of the
Golden Tunnel ores. IL IL entitled To
the fame OF being the first big gold mill
I'm the western Cascade tunnel
Peculiar Location Of the Tunnel.
The making ~ the Golden Tunnel mine
will have much ,o 10 with bringing the
Cascade border Of King county u the
attention az the mining world II IL
situated about five miles south 81 Hering
station. between Index and skykomish.
and takes its name from its peculiar for
nation pronounced by experts and geoio-
gfs's 20 DO both unique and marvellous.
Prof Gray. who made labored investi
CATION az the mine. says.
'''rhe Golden Tunnel IL about 1000 feet
above sea level In firm and stable part
Of the range IT'S strike Is from sast TO
west: II f. fifty or more feet deep and 10
the top seventy -fivo feet. A. all points
IN nearly all Of tho great chamber leads
and veins Of rich mineral abound, and
they are az great width and depth. Their
richness can he readily ascerta!ncd hy
panninR a sample ~ any part 90 them.
and the result wii be astounding. /
traced veins from the tunnel outside to
the north and south several hundred feet.
Above the mouth leads can be seen and
distinctly traced nearly so0 feet, while
below traced = large. and | am con
WINGED very rich, yrn. which cropped
out at "a short distance. which can be
easily worked q distance Of i5tN feet l
then came - the blum and could not scale
IT. Later on ! took w the same thread
and followed 81 about SO feet farther
and through the creek bottom"
Prof. trays Geological Idess.
Describing the formation uf the tunnel
the professor says.
1T no doubt Was originally a flssure
III tha mountain sldU II great length.
width aRd depth during the volcanic dts
when the extinct NukCssgu that j. at AJAX csi
a few mites ia the southeast Mas IN fVttV-
nv. the evidences uf which @an p< seen
hy studying the mountain n.aser by. tn
dtcations furnished by the aRtici!n4>l aud
syusttnaf conditions 81 the strata OF
rocks with thoir twisted bent and d3s
turtet fAees Eftnnigs fall # veins. seams
aud Atke~ ar trachyto- an1iEta hold. FOR
phugt'ic ind beNalttc rock. RUNNING often
the entire ieDgfh - RI. veins AZ at Nor
places crossing 8nd osSiuE tho strata
Az Of thsSS indication au the mountain
side point 20 the s}2jeut dl<tUFha i4s-~s
and uph~a* ais ~ fhn iutertev. us SIR.
sttoFitlc 5tke. cropping "At a. yhn - ee ~
the mountain snd showing tt~clf az MANN
points on the sides - th0 gu3eA fe2tiIak
e. ,ht Golden Tunnel Thr dtosite veis e
~ doubt forced apart aua nNt~ larger
Tho original tSsnTe heluu. Ia fact iu-
creased it's piE% every way th~reNf rsrFs,-
ius u .srt of Ttoe V~ Cf!fter 70 'fo ~.a~
fnrd elements below ttc}: ~.ee strzlE-
giing 81 Fferce the earth's rTtlst
The vrinelpa. Vein is shaug f~vpt1 fe,.r
feet wide ans throughout are }a-ge
ssreak~ - su}rh 8 vhi-6 carry "a large
percantaEN ~ gold NJ fh~ ~ste~"4ts ana
tests - tf.iS trrpegtx lut~.atr that h{ag
county 'aav areci.n % T~estaes} ar -
tionestake g $40 3t@Gry-