MINEBK00804

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

Lehigh - 4.
- 3IIRFA CE PLAIIT - Contin.
La ~ The sheave wheel 1a 36", oeat Iron. Pilled with rope.
.en ~ The collar oY the shaft is oY sufficient height to pre-
ie vent persons Yrom tripping and Yelling in the shaft and ie pro-
.~ Tided with gable doors to prevent material Yrom Yelling in .the
r shaft while dumping.
Lighting on the surface le with koroaene.
9r
E X P L O S I V E S.
A4tna - Gelatine, 40#, powder. German Inaoloid fuse and
b-a cape are used. A powder monkey is not employed and wooden
tamping bare are provided Yor the nee oY the employee. Eaploe-
ivee in excess oY one day's supply aro not stored nndergronad.
The average amount of powder kept in storage ie 30Ug.
This is kopt i.u a Yrame magazine,covered with corrugated iron,
and situate 100' northeast of the ehaYt house. Tho magazine is
need xor the storage oY powder only. All oils, oaadloa sad
other combustibles are stored in the shalt house.
xhe de~ioe Yor thawing powder is a tin tank heated with
hot water.
mI IIIHG do MIRE METHOD 8.
The main shalt is llf+' in depth, cribbed for a diatanae
of b0' with hewn loge, the balance of the shaft with stalls.
The shaft is not aivided into two oompartmeats sad has no laad-
inge. Good and eoapeaible ladders have been provided in the
shaft for a ladder-way. Air pipos aro pleood bohiad the ladders.
Thp eha3t has been sank in solid rook and is well protected.
requiring very little timbering.
At 100' Yrom the surface a drift has boss run east 50'
aaa a filled stops carried 70'. The west drift at the same depth
Yzom the anrYaoe Se 110' in lengtb anu where a filled atope
has been carried 40' in length. ?ha only eoti~e work carried
on nt this time ie extending the,weat drift and atoping 1n the
oast drift. There are no maps or drawings of the mine.

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