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MINEBK00481
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Last modified
1/6/2009 10:07:34 AM
Creation date
11/18/2007 12:07:35 PM
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Mine Books
County
Custer
Volume
16
Document
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<br /> <br />loaded'buckets and this order is posted at collar of shaft; <br />Nature and condition of gu`ldes are 4 X 6 Oregon pine; <br />all level stations are provided with passageways around <br />working shaft amich at all stations is provided with guard <br />rails.,and is secured by piSl ars of ground on each side <br />sufficient to insure safety. <br />TUNNEL' ~ <br />Main tunnel 18 a.5 X ~, 1242 ft, long.. <br />MINE 1SETHODB: <br />Overhand atoping; machine drills are einployed,both single <br />i <br />and doub le; timbering by atolls and lagging, native spruce <br />and pine and the condition is good. Underground tramming <br />Eby steel care and T-rail track, Drainage is natural <br />INoXious gases are not met with, sanitary condition is good <br />1liand all old timbers nave been removed from underground workings. <br />Shaft is dividedinto two compartments and is provided .with <br />~ladderways which are safe, secure and acceasible;lanQings <br />dare provided not to exceed 20 ft, apart and at least one <br />~Imanway is kept in repair acid equipped with laddera;shaft <br />~~ta Connected with tunnel at 200 foot level exit is readily <br />I'laccesaible to empioyea;lighting underground by candles. <br />8 T A T I S T I C B. <br />Could not ascertain the gross production <br />tonnage per month at present. <br />al number of feet in shafts <br />t per foot X25.00 <br />a1 number oP feet in tunnels Hnd adita <br />t per foot X8.00 <br />al number of Peet in drifts and levels <br />t per foot =6.00 <br />al number of feet in cross cuts <br />t per foot ;6.00 <br />al number of feet in winzes and raises <br />t per foot $8.00 <br />number of feet in ~1Nvelop~aent <br />u10 <br />124x5 <br />917 <br />200 <br />200 <br />2562' <br />
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