The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1900-06-07

valuable copper properties viii have
passed the preparatory state before the
end OF another year. This is especially
true OF the Sunset.
In Pierce county more or less develop
ment and prospecting has been carried
on during the year, notably In the Carbon
river. Summit, Mineral creek and Ma
shell districts. but the production has
been very meager.
Many years ago placer discoveries were
made in the district lying east OF the
Cascade mountains, in Klttitas county,
followed later by quartz discoveries yield
ing TO sluice and stamp. only TO be aban-
doned later on. however, from the same
causes that have resulted in the desertion
of many mining camps. The free gold
ran into sulphites after the oxidiZed ma
terial had been exhausted and so much
of the value were lost in treatment, that
the largest mill in the district, the Blew
EFT. was closed. After several years.
new syndicate composed OF Seattle men,
and known the Warrior-General Com
pany. took hold OF the property, rebuild
Ing twenty stamp mill. and by the end
OF another season will have Joined the list
OF producers, with every indication OF sue
cessful prosecution.
Mining on the swauk.
The placers of the Swauk, which are in
this same district as well as the placers
OF the Snake river. have contributed
about the same amount I'm 1895 on
the Cascade, in the Swauk district, con-
siderable new work along the line OF Inn
proving their property, has been done UNI
der the able management OF Mr.. t. L.
Carson. insuring an increased production
for tho following calendar year. They
have about three and three-quarter miles
of ditch carrying the water of Swauk
creek around the hillside and emptytng 1t
into Williams creek. At this point on
Williams creek they have cut trench
across from the surface TO bed rock and
from high bed rock at the foot OF the
mountain on the north, TO high bed rock
on the south side, distance OF 436 feet.
the depth of gravel varying at this point
from IL To q feet. This trench they pad
ded with heavy tough yellow clay to pre-
vent seepage. from'this point they carry
the combined streams through one and
one-half miles OF hume and ditch. to a
point the hillside between Williams
creek and Deer Eulch. from thence II is
conveyed In two lines OF ls-tnch iron pipe,
a distance of 30 feet TO the mouth OF Deer
guieh, where they have two No. Hos
kin's giants Owing to the light grade
In the Swauk creek below this point. and
"A consequent scarcity OF dumping ground.
they were troubled considerably with
houlders and tailings ptlinE up. thereby
decreasing their capacity. This has been
overcome. however. by "A very ingenious
system originated by Mr.. Carson, which
consists Of lowering the sluice boxes at
u point about half their length from the
intake, and running them at right angles
with the upper ones, over this drop they
have constructed grizzly. through which
all the water and flne material passes and
is CARED away into the creek The
courser material. such az boulders, passes
over the grizzly, In dropped into cars
which are hauled up an incline OF about
Is degrees and dumped, by automatic
means. resulting In their piling up the
boulders on the bank of the stream. out
OF the way These cars are run by an
endless chain. which passes over "a sprock-
ct, dumping them and returning them sus-
pended on the upper side OF the track
back to the point OF starting, They get
their power from an lS-inch Tutthtll wa.
ter motor. which takes about 80 inches
and Is taken from one of the is-inch pipes
connected just above one OF the glants.
This means OF disposing of buulders
should solve difficult problem in many
placer mines where there is lack OF