Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1903-12-19

O clazked Znczease In Idahos Precious cetaI OUTPUT =


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plants, a small min Of 10 stamps has
been OF work on tho Dewey. II Ia to
be Increased TO 30 stamps, possibly 100,
during tho present season, and tho
owners OF the Sunnyside have "
stamp plant on the way 10 that prop
| erty Several smaller mills. II IN said,
have been arranged Cor by other cor
| poratiOns,
| This machinery cannot reach the
| mine until n wagon road 20 miles long
shall have been completed. The state
Legislature, at It's last session. made an
| appropriation Of $4,000 for this road,
| The amount was duplicated by owners
| of Thunder Mountain property and the
road IN now being constructed,
OTHER DEVELOPMENTS
Prospectors attracted to the Thunder
Mountain country expended the known
limits Qf the mlneral-bearing district
by exploration Of the country to Big
creek That region IL OF an entirely
diferent character from Thunder
Mountain proper Its veins are well
defined assures. such as are familiar
TO prospectors In all lands They are,
however of phenomenal proportions
1t has been stated by many mining men
qualihed TO express an opinion on the
subject, that there Is no other section
Of country with such extensive min
erab indications. The veins are not
only very large, but are numerous and
appear 10 be minerallzed throughout
their entire width. In some instances,
the outcroppings OF these lodges have
been found TO be fully 800 feet In width.
a large number OF these veins have
passed into the control OF eastern peo-
pie by whom they are being developed.
II is yet too early TO venture predic-
tion respecting their future, but II
seems altogether probable that a num-
Der OF very important mines Will be
opened In that section.
IT will be impractlcable, however, for
these Big creek mines to become large
producers until better transportation
facilities be afforded There may be
some exceptions, possibly some of them
viii be found to be largely free milling,
but In most Instances the ores appear
TO De base. and II not likely that the
concentrates viii be sufficiently high
grade to bear wagon transportation to
present railway points. Possibly, some
OF the product will yield to the cyanide
process, but az a rule the ores do not
seem Of the kind amenable to that
method Of treatment
II Is an interesting fact. however,
that the railway people are attracted
by the possibilities Of large tonnage
anorded by these veins, and are now
engaged In surveying line OF railway
to reach that section. The road as pro-
posed VIII pass through Custer and
Lemhi counties ana down the middle
fork of the Salmon.
BOISE GOLD BELT.
One OF the most interesting develop
ments OF recent years has been Oh
what Is designated as the Boise Gold
belt. This is n mineralized zone
reaching from Neal to Pearl and pass
Ing through the foothills within a few
miles OF the capital city 1t was not
supposed, untll within few years, that
valuable ore deposits existed SO near
Boise, but II has now been demonstrate
ed that portions Of that belt are of very
great Importance. This Is particular
ly true OF Pearl. northwest OF Boise.
In that district a number OF valuable
properties have been opened up, and
the indications are that It viii become
the scene of great activity In the fu-
ture. the lands upon which the mines
were discovered there. We're formerly
used as pasture for sheep and 1t was
thought very absurd when IL was first
announced that gold had been dis
covered In such a section Work has
been golng on for several years and
the district has now attained such i'm
portance that numbers of mining men
are securing property for the purpose
Of development
In recent article on Pearl. which
IL also known as the Westview mining
district. Hon, Robert Bell. state mine
inspector, makes some very interesting
statements some of which are as fol-
lows.
Commencing at the Lincoln mine,
the mineral bearing zone extends al
most due northeast for seven miles to
the United mines and Osborne group,
right down ON the bank of the Payettc
river, and is fully mile and half
wide. This entire belt Is blocked out
solidly with continuous locations and.
It Is safe TO say that every location
covers a assure vein and some of them
Il series of veins. containing more or
les gold-bearlng ores.
Bearing on the probable perman-
ency of the veins and their values with
depth In this district, there are numer-
Gus physical features that are quite
conclusiyely In lts favor. The most
conspicuous of these are the results
obtained by the development of the
Checkmate mine, which is now ex-
plored TO a depth Of 800 feet on the dip
OF the vein and. II Is a matter of re-
cord that every succeeding level de-
veloped in this mine has shown
gradually expanding volume Of ore,
and every succeeding year of it's oper-
alton has shown n steadily increasing
value of gold bullion produced, a most
encouraging result, to say the least
THE sum of the practical mining eX-
perlenCo of all the world is. that the
richest and best ore bodies are found
I'm regions of deep assures and are al
most Invariably associated with an ex-
cessive development Of igneous dyke
rock. In this respect, then, the West
view district. with its great veins and
dyke systems is especially well sup