The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1913-04-17

The most productive mine In Blain
county during 1912 was that of tn
Wilbert Mining company In the Dom
mining district in the Little Lost Rive
mountains.
This property has been operate
with a new concentrating mill of 10
tons daily capacity. which was com
pleted ana gotten into commission las
spring. Through faulty design or
misconception of the nature OF tn
ore to be handled. the operation Of thi
mill has not been very satisfactory
lead concentrates have been shipped
from the property during the year, bu
a serious loss was made In the tail
iugs. due to the extremely fine grained
dissemination Of the mineral whicl
consists of quartzite gangue and {
lead sulphide and carbonate mixture
IN which crystal forms have beer
largely destroyed by crushing move
ments of the deposit since 1t was
formed.
The property Is located 40 miles
from the nearest shipping point at Ar
CO. on the Salmon river branch of the
Oregon Short Line railroad.
Some concern was felt about the
probable downward extent Of this ore
body by reason Of the marked change
in the formation which 1t was pene-
trating. 1t occurs in a zone of light
colored vitrious Cambrian quartzite
that is sharply folded Just below the
lower tunnel level, the light quartz
lite is succeeded by heavy beds Of dark
maroon colored rock and some high
geological authorities who visited the
property during the year contend that
the favorable ore bearing formation
folds under the dark colored rock and
that the ore will continue In the pres
ent matrix to an indefinite depth.
Wood River Mines.
The Wood River section of Blaine
county experienced another dull year
in the matter of ore production and
development.
Renewed interest was shown how
ever, and work of development at sew
eral points are likely to produce re-
suits in new ore reserves at no distant
day.
The Wood River mineral district and
it's tributary districts are very extern
sive in area and show remarkably
wide distribution of ore of various
kinds and characters. Its gangue min
erals and formations are in some re-
spects. bearing on its ore genesis,
similar to some of those of the Occur
dAlenes in the fact that the ad-sil-
yer ores occur in ancient sedimentary
formation and that their gangue min
erals are decidedly mxed with slider
tie, iron carbonate. and they have been
folded and ruptured by intrusions of
quartz, monzanite, diorite and erup-
tive granite masses and bikes, the
class of igneous rock that is believed
to underlie the Occur dAlene series
and shows in conspicuous irregularly
shaped masses near some Of the most
productive assures Of the northern
district
The smelling ores. however, of the
Wood River district, while much
richer than those of the Occur d'Alenes
occur In a more slaty and shay for
nation that Is less susceptible of open
assuring and SCATTERING and the for
nation of extensive ore bodies. which
in the Wood River sediments occur in ,
q more lenzy form and are less certain
In extent.
Twenty Millions Production.
The district has made very i'm
portant yield In the aggregate of sill
ver-lead values. amounting to nearly
twenty million of dollars since it was
discovered, and the high grade ores
usually run one to two ounces of sill
no place have been followed to any
great depth. The formations are de-
cidedly faulted. which is one Of the
characteristics of all the important
ore producing districts in the world,
and 1t Is by no means settled fact
that the more prominent ore bodies of
The district have been exhausted, as
there is decided evidence that they
have simply been lost by faulted dis
placements and in all probability will
he again recovered with further de-
velopment at depth If diven the proper
capital encouragement. +,
Famous Bullion Mines.
At Bullion, the Bullion, jay Gould
and Mayflower veins show an outcrop
That has been stopped almost contin-
uously at the surface for nearly three
quarters of mile in length
This famous ore channel, while not
wide at any point. was noted for the
high grade silver lead ore it produced A.,
with total gross output of five mil
lion dollars above the drainage level
n the gilch in which 1t occurs and at
only a few hundred feet In depth be-
low the apex of the vein and it seems
unlikely that such continuous out
crop Of mineral and the strong fis-
sure conditions accompanying it.
would be exhausted at such "a shallow
jepth.
AS matter Of fact, these mines en-