MINEBK00502

• County: Lake
• Volume: 10
• Document: Inspectr
• Suffix: C

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The title is vested in Henry Bolthoff & Co.
Principal office at Denver~Colo.
Leased to the V:esterr. Mining company.
S. D. Nicholson,President,Leadville,Colo.
TOPOGRAPHY .
Altitude at collar of shaft 10,750 ft.
the surface is hilly there i•s no stream or timber on the surface
of the property, The D. &. R, G, ry,together with good wagon road
connects with the property.
GEOL•CGY ,
There is a good geological survey of the diatriet. The country
rock consists of porphyry and quartz.
The ores are a heavy sulphide ore.
There is one vein,the striY.e is northeast and southwest dip 35°
aoutheant,vein width from oneft to 25 ft,
The vein filling consists of shale and porphyry. The walls or en-
closing rocks porphyry and lime,
'!'he ores consist of smelting and milling ores exrrying siiver,lead ~
iron and copper,
SURFACE PLANT ,
The prnver plant aonsiats of .five 100 H.P, horizontal return tubular.
boilera,using city water, carrying 130 lba pressure and inspected
August,1907,
Coal is used far fuel.
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The hoisting engine is steam 13 X 36 first motion hoist.
T}iere are two 15 X 2-1~2 electric motors. ~'
The hoist is equipped with a positive Indicator in plain view of
the engineer who operates at engine. Age of engineers 42 and 55 yrsl~
Experience as engineers 20 yra each,they aro not addicted to the
use of intoxicating loquors, i
The shaft house is 40 X 60 frame, The head frame consists of four