MINEBK00576

• County: Boulder
• Volume: 10
• Document: Inspectr
• Suffix: A

-4-
T:e second exit is through upraise to surface, 250 feet
from south of tunnel. Jnderground lighting by candles.
Total number of feet in shafts 150
cost per foot $50
no. of feet in tunnels 600
cost per foot X10
no, feet in raises 110
cost per foot ~5e
Total development 860 j
overage ao of men employed for year 2O 1
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lYauea r•mnino from ~3.5o to X5.00 per day of eirht hours.
Cost of coal, per ton, ~p6.50
" wood, per cord 3.50
Average assay '~L'1'10 are per ton, Se to a12
Coat per ton o: minim ore X1.25
Cost of concentrating, per ton :j1.00
Smelters charge nothing :or treating ore on account of lead
contents.
Indec+nity insurance a~*ainst accident is carried in the ~
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London, Liverpool ~ Globe Co. j
Send blanks to T. L. IYood, 312 E. 12th Lve.,Lenvcr,Colo. ~
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RF.C0~.11'.NLAT IONS.
1. Equip the Snovry i;anr*o tunnel with nafficient doors
at a reasonable distance from the entrance so they can be
operated from without to prevent obnoxious gases or fumes
in case fire should occur in buildings at mouth of tunnel.
2. Leop uprai:~e to surface readily accessible to employes ,
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