MINEBK00457

• County: Boulder
• Volume: 13
• Document: Inspectr
• Suffix: A

i -
I Golden Age - 4.

--F.'-%-P L 0- S I -V ~E S - Contin.
Ho devise for thawing powdet hea been provided.-
.,
M I II I II G & M I R E M E T H O D S.
.., ,:. ,_
Tho main opening is a orosa-out tunnel oalled the Golden
Age Tunnel. At a point 450' from 'the portal the tunnel inter-
seats the Golden-Age vein where drifts sre run east, 180' and
crest, 200'. Considerable atoping hea been done 1n these drifts.
At this tine the west drift is being extended and all of the
timbering throughout is being overhauled in the tunnel.
At a dlstanoe of 100' from where the tunnel interseota
the Goldon Age vein,and in the east drift, a orosa-out is run
to interseot the Eldridge vein where drifts are run east, 200'
and•west, 160'. At a distance of 100' from the intersection a
winze is sunk a distanee ot•193'. Ho work is oarried oa here.
IIot far from the breast of the east drift on the Golden
.. .
Age vein interseotion is made with a shaft sunk on the same
vein. This shaft is 800' in•depth, cribbed with-hewn timbers
for a distance of 300' from.the surface, divided into two oom-
partmonts for a ladder-wny and bucket-way,. and kept in good
~ oondition and properly equipped with eats, eeoure and aooeae-
iblo ladders. Ro work 1a done 1n tho shaft and it ie used only
for air and an additional ex1t.
Anothe exit is provided through the Centennial tunnel,
600' oast of tho Oolden Ago tunnel, through a drift that aon-
aeote the two tunnels. The Centennial tunnel belongs to eaothor.
)go fire proof doore•aso needed at,ths portal of the tun-
. nel ae ao buildings era near eaongh to be dangerous.
grainage and rantilation are natural and euttioiant. Ysa-
itasy ooaditioae are good sad sli old timbers are being :ecwved
from nndesground ae fast es they arc soplsocd. Timbering is good
sad euttiaiont to aeonrs safety.
lssaoeing is dono by bend with steel oars wk a tsaokage of
18' guage sad 12/ '! sails.