MINEBK01157

• County: Gilpin
• Volume: 14
• Document: Inspectr
• Suffix: A

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]Int . Tun. - 5.
1].I :I I :T G n: :~ Z L :: F. H 0 D 5- Contin.
stulla and divided into tn•o eompnrtments Yor n bucslcet-tray and
ladder-tvay respcetivoly. This shalt Se-uood only for nlr and
nn additional exit. At a depth of ltf5' drlYts aro run ~: clis-
tanoe oP 60' bot; h east end frost.
Ona thousand Peet bob*ond the bronat oS the tunnol a
ehaPt has boon sttnl: on the Calodonin voln and is 520' in clopth.
DriYts aro run ovor~r lU0' on both sides oP t:he ehnPt, vnrying
in longth Prom 75' to 300' respeotivoly. Very little ore stns
tr:lcen _ i'rom this vein and all s:or]c hna boon abondonod.
Tho method os oro extraction 1s s:1th Diots Tleotrla ma-
chine dr111s and both sin~lo hnnd rand double hand dr1111ng.
Both undorhand rand ovorhrnd stoping is done.
Vontilntion is natural rand no noxlotto gnsos aro mot c:ith.
Chutes aro loc:ded by hand and gravity. tlnctorgrottnd tramming is
done b? hand and Uurros, ateol ours oY tho mino anil omoltor
typo being acad. The trackage is ld^ gtulgo and 12;,`~ T rn11s.
5anltary conditions a:nd tir7be:ring me good and sufi'1olent.
Candice are urod for 11Chting underground.
~ ~' i--'~ S T A T I T Z C S
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t Avorngo tonnngo leer month, 1uo.
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~i Avounge value oro per ton, el:'..
j ~-I 'r Cost per ton mining oP oro, rs2.G0.

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i Coot per ton transporting of oro, 40y~.
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~~,' Cost por ton treating .:oncontrating oro, .„2.Y.ti.
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~i~ Cost por ton fronting amolting oro, ~6.
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Total ntunbor
o•l Poot in ahaPts, 1,200.
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1 " " ~' " " tttnnolo, 4,ti00.
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' rt n n u 'r 1ovolo, 1.600.
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^ " " 01CE0-•Cl1tE, 300.
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l " " 400
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~i~"., i ~ Avorngo coot oP fitnbrir por month, ;~1t5.
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