MINEBK00683

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

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Via';. Frontenac - 8.

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MIHIIIG 8c FdIRE METHODS-Contin.
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The portal of the Frontenac tunnel is 300' northeast of
~~ the Frontenae shalt,and 350' lower than the same. The tunnel ,
was driven during the early history oY the nine but is now a-
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f bandoned except for the purpose of ventilation and ae an addit-

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tonal exit. The tunnel is 1,000' in length, 4' x 7' in the clear,
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! preporly equipped and kept in good condition. Ifo fire-proof
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`~; doors are needed at the portal A9 no bnildinga are immediately ,
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'.' ad~aoent,
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~'' The tunnel outs the Frontenao shaft at a point 140' from
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~':~ the eurSace.and is.connoeted with several lovele of this shaft
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' by a number of upraises.
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Six hundred Yeot west of the Aududdell shalt ie an odd
~i abandoned shaft bb0' deep. Ro other vrork has been done on the
anrtace except a number oY shallow pits and excavationp that
were made in the early history of the mine.
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~a An additional ozit !a•providod through oonnentiona made
i with the 700-Yt. level 1n the Frontenao shaft to the 400-Yt.
(i level in the Aududdell shaft and Yron this point to,tha 200-tt.
i"t}!,'.;j level in the Aududdell. Tho tunnel outs the Frontenao shaft
s t~;, ~ 140' iron the enrtaoe. All of the lovele in both ahptts are
t ~t oonnectod by numerous upraises.
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1'i`j'; ~ The man-r~eye preporly equipped And ko tin
~ „i , p Eood repair
I~~q~ are; 400-Yt. level to the 200-Yt. level apd to the tunnel. All
'~~~~;'~ en the west side of the Frontenao ehaft..An upraise from the
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~ 700-Yt. level to the 40U-ft. level in the Frontenao ahAtt 1a
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a~'~fl ~ nearly completed.
;~I}' Slaps and draeings oY the ourTnoo and underground norkingo
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~~~'{ Are Yept is the oPtice,At Central City, Colorado
~~°, _, The bothod employes 1a hoisting is r}tean at the Aududdell
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'`'i~- sine and electricity At the Prontonuq nine. A weight of 2,000f
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{``r is hoisted a dlatanoe oP 600' at the Aududdell and 6U0' 1n the
~_~": Frontenao with 3/.-in. steal wire oabloe. Tho cable at-the Pron-
tense hr:n boon in uao ,two raonthe; At the Aududdell, .tee ~eera.
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~ Beth are in good condition. SASety hooks aaa ohaine~ inetened
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