The Idaho recorder. [volume] (Salmon City, Idaho) 1886-1927, 1914-03-26

I 4 HbsiutF ~ IAbA@Otht tSAl-NltNt q
I prospects, ana had been doruant Tor
/ twenty-five years due To its isolation
from rairload shipping facilities.
" he the railroad reached the camp
/ IL inm ediately jumped into promln-
/ nee as an important and profitable
/ lesd-siiver district, Its output has
neea principally Supplied from the
! Pitt sburgn-l ana Latest Out
! mines, "ith several small contrihu
| tions from prospecting ventures.
! These two mines produce lead
carbonate ore rich IN iron oxide, car
| ying values OF about 30 D rctnt lead
! aud Is ounces in silver, together
with 80 cents in gold. The prGduc.
| tiUn has neen entirely IN crude ship
| Ding ore Of this class, without Mill
,ng facilities OF any Kind or the ac-
cumulltion OF any second class dump
| They have em mployed an average force
OF 200 men ard paid approximately
| from their operation.
The deepest levels 0f these twu
/ properties are GOO and 400 feet below
| tue surface, respectively, at wnicn
| horizon they shCw the largest anc
| hest resources of ore in the history
OF their development.
The formation up to this time has
been dry, with snft ore g4ugue and
easy grounu has afforded cheap and
| rapid development results. These
/ properties carry close set serials o
parallel hssute veins that dip from
| 30 degrees TO nearly perpendicular
aud are enclosed in series " lime
stone ueds of opposite dip 1000 feet
thick, extending from the underlying
Cambian quart4ite through we'll rep
resented horizons Of succeeding geo
logical age up to the carboniferous
/ period
! Tie ore bodies are lenLy In shape
and vary from few inches up 90
twenty feet of clean ore.
/ In the Pittsburgh idaho mine, per
mauent water level appears to nave
been struck In a WinZe beloN the 600
1 foot level, with an accompa aying
change to sulphide minerals, consist
| ing OF coarsely crystalline loose text.
u7ed galena with a strong mixture Of
/ zine and iron sulphides, very much
/ resembling In character the live ore
horizons Of the Park City deposits In
! Utah. The geology, however, of the
enclosing formations i almost an ex-
/ let counterpart OF the wall rocks OF
the Titanic ore deposits in Ctah.
/ which have been prohtaply operated
! Tor so years and to depth Of over
/ ,, 900 feet
/ These Gilmore ore bodies have
/ been persistent, although occasionally
interrupted by short faults--in tueir
/ downward course 10 the maxiuum
/ depth. a. above stated, Of 800 feet.
/ The limestone series Is 1000 feel
/ thick aud the underlying Cambriau
! quarlzite, where It has been exposed
/ og the erosion OF the limestone bed,
further west carrying some hatterlng
showings of ore associated With por-
/ phory uikes that contain higher val
| ues IN botu leao and silver in some
sball " developments than il founu
IN the liuestone deposits Of this
class.
Intrusive dikes OF the same cuaraC-
ter generate tue everything lin estone
series, aud these connected con titiuus
afford lie strongest evidences Of the
permanency of these Limestone ore
b dies entirely through into the uu-
/ q drlying quartzit, formations ind
eating long ife Tor these mines and
4 continued and profitable resource
Of desirable lead-.rIyer ore to great
depth
The principal producing veins In
TINS 81 trict In the imcstcne forma-
lions are practically blind a the sur
/ face, tleir Uosilioa being Indicated
( 1l IRON stain an1 gUsSan blossoms Uf
| limited extent aHr u looks - II the
total valuable resources ~ the depos-
t. Asrs intact and 8nhurt by erosion
lin The fuiI sections - the limestone
beds TINS district carries mum Der
0f attractive prospect "a fac, II Is
miner liILed for several uiles along
tie ncr and south strlke % the ore
courses. whiC- 5rr situated on yery
/ nigh ans rugged rIuge that reaches
a MAXIMUM elevation o! ~. OOG feet
above sea ieysL The producing
/ n as. however. 4rs well do~n to-
ward the foot y The Ange, uear fbe
eage " broad grassy valley and are
very convenient ~ access. Situ q
.rlHNav teruIna. ~lthiu feN run
o. feet - TIE ~5rks
Tins sIIyer-isa8 vein system Is &C
camyanied oy clio ely pArAllsl or,
course a. important size 4ud develop
usnt that c4gri-- un cad aud 0nlY q
trae. ~ silver, .4t nitr gold e
exclusively 10 winch ! siI4 lsier g..
!sT under gold deposits u the stfte
10 another p.rJInu Of the district
s0tL- 70 uArkaul1 iEtert sting gupgs-
o.e s4OSiHgs are Al,o ia sstdeuc. -