MINEBK00683

• County: Gilpin
• Volume: 12
• Document: Inspectr
• Suffix: A

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..;. Lone Star - 5.
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~MInIA G & Mi 1vE DdhTHOD3-ContiD.
~! for aetety.
;! ' A7.1 ores aie extracted byt atoping by means of
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~ single hand drilling. No machine drills aro employed.
',~, ~ 8tnlls, oovored with lagging is the method oY timbering
!~ ~ and ie sufficient to secure safety. The timbore aro pine.
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~ ~f propared by hand and are is good oonditioa.
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' Chutes are loaded by hand.
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s~l { Stoel buckets with wood trollies aro need Yor underground
tramming. The trackage is 18" gnage and 8g T Yaile.
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Fi ;! A Duplex steam pump, atatioaed at the 2b0-Moot level is
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p'p~~'
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employed to handle the water. she average amount oP water to
~ be dealt with is 4,000 gallons every 24 home.
k~! Pho ventilation is natural and euYfioient. no noxious
f~ genes are met with:' '
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~'i ~ The sanitary conditions aro good $nd all old timbore have
F~: removed Trom underground.
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Lighting underground is by means of candles. '
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,. S i A T I 3 T I v E.
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f;Y ~ Average production of oro per'-~pnth
20 tone.
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Ii Average assay valve of ore por ton, X22.
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Yotal nnmbor or feet in shaYta, a42.
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s ; " " " " " levole,
490'.
~'+ " " " cross-cute, 1G0.
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~ Cost of steel por lb. 11 ote.
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Vii; " " oil por gal.. 66
~''4!
;. , " " pondor per lb. 11 "
'~`;i ~ Ynbl !e dry Hood picked np on the proporty of or.•aors.
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~'. Yen oaployed:
>'~F l,,» b Ylaera, 1 hngiaeer, 1 Saperiateadeat. ao wages are paid
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,~f,~ as men are lessees.