The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1899-10-24
Comprehensive Description Of One
of the Index Prospects.
INTERVIEW FROM AN EXPERT.
surpvisiag Cropping Of Copper Ore
ON the Catum~t-Over Hundred
Thousand Toms Estimated TO he
Within the Limits Of Economic
aent--Re.uiss OF Mill samples.

says, III 5shtGeu from iU9sN DS HItdiiS
of the Sunset Copper Mining Company's
tram road for two and naif miles, 10
point where a pon3 track leads OF along
the south side of Bitter creek. This point
the commencement Of the Calumet tran.
Is rs feet above Index and 100 feet above
sea level. The trail follows Bitter creek
which il IA steep, rapid mountain stream
for about two miles. crossing the creek
to the north side about one and . half
miles up, at elevation Of 2.3os feet
above sea level Half mile from the
crossing II the Cafume, camp. situated
on one OF the claims Of the group. and
al an elevation Of about $50 feet above
sea level The whole of this route Is
covered with an exbaustless quantity of
magnificent timber. and presents unlim-
tied resources for the use OF water power
for the generating OF electricity or com
pressed air for running machinery for air
drills and concentrating plants. From
the camp the trail climbs the hill very
rapidly TO the discovery on the claim
known as First Extension which II
about LOO feet higher than the camp
and about 4.2sa feet above sea level. Here
] found n number OF men at work build
ing winter accommodations for miners
and blacksmith shops and others blast
Ing of the surface Gaping Of the vein
and preparing to start tunnels in on the
ledge"
Fissurc Formed Into = Watercourse.
How did you find the character Of the
ledger
'The country rock In hard granite. and
the ledge itself being more easily worn
away by disintegration, forms q guich or
canyon. down which a small watercourse
makes Its way. gradually wearing away
the setter parts Of the ledge and expos
Ing It to view Walking along the ledge
both ways from discovery IT can be dis
tinctiy seen cropping out for about IT'S
feet. and. looking up the mountain the
assure can be traced keeping It's course
through, the granite TO the summit
have no doubt II passes over the sum
NIT on In the Trout creek slope Down
the bill also the assure can be traced for
a long distance. with ore cropping out
now and again. whilst Mt other places II
Is capped by The country rock although
To the practleed eye easily distinguishah,e
from the country rock Both above and
below discovery the hlitRide is very wteep
aud presents extraordinarily good faci-
ittss for cheap development by means Of
Rdit tunnels on the vein. which Is the
most economical method known to min
ers and which means a saving of many
thousands % dollars In the year In work
Ing expenses.
THE strike Of the vain IL nearly north
fracture. which follows the course Of the
grea, nrheavai OF granite in which the
copper bearing veins of the region are
found. consider this feature worthy OF
mention. for, together with the fact Of
The porphyritic nature Of enc side Of the
ledge. II stamps the vein az a true rs
sure
Milling values Of the Ore.
Did YOU sample the oresr''
Eyes, Al the discovery found the ledge
20 be about eleven fee. wide, standing
nearly vertically between wallis ~ granite
presenting unusually good surface
showing. ana attracting The eve Of a miner
n; once hy It's strong and permanent ap-
pearance. SIX feet OF this ore consists Of
a ganxue OF quartz and decompo.ed dark
coioret rorphyry and some decomposed
country rock. insaxmixef with which 10 "A
roodly quantity Of chaicopyrito An aver
age sample II this six feet gave a value
Of Goid. trace: silver, 90 OK tat esc. oar:
copper. iys per cent cat lie. 81 Tor or
total Of ss7 y a ton ore of this character
viii pay handsomely to ship direct io the
srrelter
The other Ave feet consists Of A dark
porphyrtiic rock ana feisite aise carrying
chaicopyrtte hut not 50 richly "a the other
part OF the ledge An average sample ~
this five fee, gave a value OF: Gold none
silver, ca, tat &c. 81 sO}. copper IS per
cent. Cat lie. slotgl. or total 90 sliae a
ton
This class az ore may Ss considered
very fair concentrating and Al cos. 81
~ cents per ton would ~ srHae' up ,u a
Hr$:-ctaxs product such as would stand
the cost ~ Transportation ard reduction,
ar the Everett, smeltsr. ~ which could be
matted on HE ground a. sDsga~tea farther
on. The difference ia gae specific gravity
81 the Eangus ard the rAai snpeTfte - such
as ~ leave a good margin fnr successful
concentration The priov = II cents
which l have figured on ter copper 5
what the smslger ai allow fo- IL ~ Fsv-
efett. Pure reflae,i copper is quoted 81
present It's New York sf i>,a cents pr
pound"
Estimate of the Ore In slight.
What src the Developments al"
The tunnel which is 81 present hegne
started wtn reach ms body Of mineral a.
a depth u mere tsau ssventv-fivr feet
with leuEsh q 2h ~ ls feet anH the
orc can be lowered toWu hv means u /.
wire - ~. & ste v}ssuttv 80 he present
camp. after which e ean - transport 81
IL abe Railroad suA - ea 50 tss snl,lieY
az Et~rVtt. ot 81 an - matted on sho
sr1fut tu he vicinity Z Ia vuiue ana a.,
matte shtppe} 20 .he re93~rrv \ Tunnel =
uew be.ns driven In eH stsv ofe cody an
o.hev tpNneis car also he starred cr she
,ein sti'l icwtr town. ans reserve Sap-
plies IT ere s"ened ~ - %4ch quantities
as NAV I've ~ advisable
Mr. t.1ckr makes a ~eaSasVa1lsr - J.
naNta af orv shasE $3.50 ne asSss ~ - -.
lsneai cfcpplne 5usca3 ~ 80 se,t an
visible. aua StS feet al paw ra-k tAssx
eliminating the yarreatfz.tag c~s fem
his osicuia ssassS- h-ssi,iAsins the water
level at /. ~ Test, re ANS ~ sight ~ ST.,
tons. ~ approx .E.ats.s ri" t7u* ,a -. p
tpl fe0s h &spth <Fhy afne.nx Z a~e i-
ADDITION which Yes hetsw astvr t->ef g.
this cnc sseot Nj tNeSs ast~ mas,
he error facus3s gsesieT ans eau eG'F e
limited hy .ne aepth tccrn ws1-a .ag
machinery = avw Ahle - rs-zs s1AtfrtA.
ard ruu9r water in fsts So s7e coarse
of twenty 1--WE years Il ss-Fsas ara ne
exam .natsea - s;}isses I have ss.fs2ss3 *Sea
S. pr0c- prospect @tla s0 srSs =
,seg~ ara Y.ex Sgr "a Eas slss4cs