MINEBK00683

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

i+rontenao - 7.
• - EBPLO SIVES-Contin.
- mine are stored in a Yrame building, 14' x 16', 25' west oY the
for shaft house. At the Aududdell mine these are stored in a frame
shed on the west aide of the main building.
lar

i MIII 1HG tc I1IIIE EIETHOD S .
,o se - The Frontenao shaft, whioh is the vain workiag shaft
of this group, la 840' in depth. Cribbed for a diatanoe of 130'
ded with 8^ x 8" agnare tiabera and the balanoe of tho ahaPt is tia-
1- eyed with atolls. The ahaTt is divided into two oompartaents,
eaoh 4' x 4' in the olear, used for a bucket-way and ladder-way.
The ladder-way oontaina air pipes and hag landings 30' to 50'
apart. The ladders are safe and easily acaeasible. All of the
ground above the fourth lovel 1s praotloally atoped out and io
abandoned.
j; bevels:
400-ft. level; east, 16b'; weak, 1,281'.
• 600-ft. n n ___ ~~ 823' . -
- 600-Yt. " " --- " 1.b50'.
~eA_ 90U-3t. n n 400'; " 941'.
It 800-Tt. ^ " 120'; " 30U'.
_ An upraise ix aado Trom the•rroet, 60U-ft. lovel to oonneot
with tho Yrontenao tunnel.
In tho 4th., 5th.. 6th., 7th. and 8th. lovels etoping is
t parried on and on tho wort side the 6th. level is boing extended.
Tho Aududdoll shalt, whioh is 8b6' northeast eY the•Ilron-
~_
tenao shalt, is 600' deep. The dosoription oT tho lfrontenao shaft
given aDovo also describes equipmoat, oompartmenta, eta. in the
Aududdell shaft. All ground above the 3rd. level iC atopod out
and abandoned. The 3rd., 4th. and bth. lovels aro belttt eztonded
~
and tho eha2t Ss Doing sunk.
_ hovels;
30U-Yt. level; east, 40U'; west, 230'.
400-ft. " 400 " 7L'0.
600-ft. " 2 120 " 450•
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