MINEBK00595

• County: Clear Creek
• Volume: 16
• Document: Inspectr
• Suffix: A

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Silver Bing - b. - .-. r,~ r ~. j.-
M I l4I A~G- & MIRE METHODS - Contin.
The method of ore'extraotion is overhand etopiag--and ~~~.
drifting. Wangh maohine drills are.eaployed and.sone aingle':<:::.
hand drilliag ie done. -
Stu]Zs oovered with lagging are used for timbering•.~~The
timbers are prepared by hand Yrom red apruos, are in good ,
oondition and are auffioient in size and number to insure
safety ~ ~ : .. .. _: ..._
Chutes ere ioaded~by hand sad gravity. c -: ~_
IIndergronad trammibg is done by hand. Steel oare'sre =.
employed and the traokage is 18" guage and 12~ T rails:
Drainage and veatilation are natural sad no noxloue
gases are met.wlth, Sanitary oonditiona ai'e good. and all olds
timbera.and debris have been removed from underground. ..
Carblde lamps are used for lighting undeig'ronad.
_ STATISTICS .
6verage tonnage per aonth, ----.: ,
-- Average assay value of ore per ton', X26.
Coat per ton transporting. ore;'3b~.'
Coat per ton treatment of ore, $1.26.'
Average cost per month of fuel. $60.
" n n ° ° Oil, ~Q.
" -" .." ° " powder. $150.
Total number of feet in shafts, _____
" ~ n n n n
. ~ - tunnal~s, 1,600.
n tt " " rc L _drifte ~ 100.
" " n n "
oroee-onta,.140.
. " " n n rc
winzea, X40,
". " " n ° raise
~ s, 207.
Men employed:
2'Maohiae Drillmea,
$4.00 fb`r 8 hoar ehtft.