The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1900-08-11
Details of the Strike Made at the
300-Foot Level.
ITS PsRMANsNcy Is SHOWN.
Material Increase In the Future
Output of the Camp-Discovery
Full Of Significance to the
Boundary-summary of work
Done in Developins Mine-Expen-
ditures Will Soon Reach $500. oO0.

Recently information was received that
the crosscut from the north drift at the
300-foot level OF the Mother Lode mine. in
Deadwood camp. had run into ore. This
working has since been advanced twelve
feet and II still has full face OF ore.
which is chalcopyrite in a gangue OF
magnetic oxide of iron. Similar gangue
was not met with to any great extent in
the several crosscuts that were run
through the big ore body at the 2oo-foot
level. SO II Is possible that a separate
shoot of ore has been cut at the lower
level. But whether or not later develop
ments will show that It is the same ore
body on both levels these considerations
remain. that II has now been demon
strated that the ore continues In guam
tity at least q hundred feet deeper in tho
mine than was disclosed by the workings
at the 2o0-foot level, and what is more
important still. that It appears to be GO
ing down strongly, so that It Is quite
reasonable to anticipate that. as II fire.
quently the case with big deposits of cop
per ore. II will live to a considerable
depth and so the better insure perma-
nence to the mine.
The Greenwood Times points out that
the significance OF this new development
will be more adequately recognized when
II Is remembered that the development
work done TO date at the aoo-foot level
has proved the ore body to be at that
level from eighty to ninety feet In width
and at least $50 feet In length, with a
prospect OF crosscuts now being run
showing that another 100 feet or more
will be added to its known length when
these workings shall have been carried
suflciently far to intersect the ore II II
continues on the course that seems to
be Indicated by the completed crosscuts.
TAe continuation of SO large a body OF
ore, even should II not extend beyond the
$50 feet in length already proved. down
another 100 feet means material addi-
tion TO the mines available supply OF
ore. That It will continue down IL not
doubted. since from the surface to the
2eo-foot level its appearance and general
able for permanence and the geological
conditions, so far as known, are such
as TO encourage expectation In a similar
direction.
The preliminary work ON the mine was
done under the direction of Mr. Keffer.
then representing the Boundary Mines
Company. which was early in 1898
merged into the British Columbia Cop
per Company. and consisted in running
a crosscut tunnel 27 feet. The work
showed the lode to be iss feet in right
angie width where cut at depth Of
ninety-eight feet below the highest point
OF the outcrop on the top OF the hill.
From this tunnel an incline winze was
sunk ninety mine feet. and at the bottom
OF the winse crosscut was run both
ways In all eighty-seven feet. Some
underground work was also done on the
adjoining Primrose claim, which Is one
OF the Mother Lode group. but with no
important results
The existing company was organized in
the spring OF 1893. and shortly afterward
a power plant. the largest up to that
time obtained for use In the Boundary
years ago. though. transportation was
attended by many difficulties and delays
and much expense tthe cost of hauling
this plant from Marcus to the mine was
about 81 00o) so that II was not until the
fall OF 1895 that the last Of the plant was
delivered and installed. Meanwhile the
vertical double compartment shaft now
In use had been sunk 10 a depth OF forty
feet, so that this much Roadway had
been made before steam power for hoist
Ing and compressed air for machine drill
Ing became available. Since then the
shaft has been sunk TO depth OF IS
feet. some AIS feet OF drifting and
prosecuting have been done at the 800
foot level which has been connected by
means OF an upraiss with the old cross
cut tunnel, rs feet vertically above |:
ting have been done at the 3el-foot level.
a site has been hewn out for a big hoist
and the foundations cxcavated and now
being prepared for thirty -hyc-drili air
compressor, more powerful machinery
and plant (now oyerduel equal TO open
ing up the mine TO a depth OF Loco feet.
having been ordered some time since.
ore bins with total holding capacity
Of $500 TO $500 tons have been construct
cd: mine buildings 20 accommodate
scventy-fiye men and eight cottage resi-
dcnceS Tor married employees have been
huiit aud more accommodation is TO be
added shortly, The total expenditure to
date IN PURCHASING, equlpping and devel-
opfng the Mother Lode group OF claims
has been about s22D.0a, and the further
equipment improvements and develop
ment now IN hand, or to be shortly un.
dertaken. win involve further expendt-
ture by the end os the current year %
about ssa.o Then there Is the expendi-
ture on the company's smelter now being
erected at Greenwood. This has been TO
date about tso.s1, and will, before the
year closes, have reached a total Of
yisA 900 70 sl0coa. Mine and smeiter con.
sequcntly. viii within the ensuing six
months represent a total expenditure Of
between sfac 900 and $50 800,
The Mother Lode group ~ claims con-
sists OF the Mother Lode, Primrose. Ten
brock. Offspring. Snnnower and Don
Juua. ali aajoirtng. They are situated
within three miles ~ Greenwood from
which town a branch railway runs past
the smaltsr "a the mine,