MINEBK00804

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

2dorning Star -6.
biIIIIIIG_& MIIIE METHODS-Contin.
oP signals is posted in the engine room, at the collar oY the
shaft and at each level station. Persona are prohibited Yrom
riding on loaded sklpa but the order is not posted. All such
supplies have been left with_the management with orders to poet
'them 'in their proper places.
' The method of loading skips is by dumping the Dare into
'chutes and thenoo into the skips. The skid way is 16~ T rails.
' All level stations are provided with passage-way around
'the working shaft and also with guard rails. The shaft is se-
cured upon each side with pillars oY ground sufficient to secure
safety and all mill holes are protected ~+ith guard rails. The
abaft Se not being sunk.
The method oY ore oztraotion is by means o3 overhand
etoping and drifting. Leynor and Sullivan mnohine drills are
used and some single hand drilling ie done.
The method oY timbering is stalls covered with lagging.
The timbers arc prepared by hand Yrom pine and spruce, are in
good condition and euffioient to'oeoure saYoty.
Underground tramming is dodo by hand with steel oars.
The trackage is 18" euage and 8~'T rails.
The average amount of orator dealt with ie 26 gallons
por minute. The system employed for handling water Se two,
Do. 6, Cameron steam pampa. Tho 2iorizontal pu~ap is stationed
at the 300-ft. level and the einlter in bottom or the ehatt.
Capacity of the pumps is 32.000 gallons Dusty 24 hours.
The ventilation is natural 'and euffioient. Slo noziono
gnaca are mot with. The eanitary'oonditions are good and all
old tiabera have been removed frdn the underground workings.
Candles era used for lighting underground.
8 T A T I 8 T I C 8.

Grose produotioa of ore, not given.
everaea tonnage por month. 900.
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svarago essay valve ore per ton. ~0.