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--3-- <br />S JRFACE PLAAiT, <br />The surfarr~ '!91R1'lt ednsiste of at main tunnel 1-3~ story <br />Boarding house, 150 feet from ~i~t9ts~~torr of tut~nei, x-150 <br />x,P, air oonrnresa~ar rt#n by A~I~tY~ritY, cake officte, ~sne <br />stable-, tram ~erminal sold sifoM shed coxL~eeted frith tunnel <br />all under one roof, <br />• ~ X P 7, 0 ~S I'V' 1~3. <br />Du Pont• 40~o p~h-der is used.. Imparted >~nsoloid Zt;' fuse; 5-x <br />oafs 83'td' wo+~cie7s LaMnirtg bars are ustrd,~ Exi5lbsivee in ex©ess <br />of one days ~nxppiv are xkot_,,Atored. unQerground, The average <br />amount of explosives kept in etdra~e is 5040 ;1?'his is <br />Kent in so13d rock h0118!!r"~iith* ~n 1~5h rtSOf ahatSi~t 300 fit <br />from said tunnel or any other buildings and used for. this <br />pur.»ose oni~t. 011x, undies and bthPr.eombustabies are stored <br />in a sore row. The df:viee for thau~i'rip; »oader is an <br />elent'ri~s hutted rt~tt~-, 8 Yw~wiler monkey attPnii~s to it' <br />SIN I'Aifi A11D ~'IN;p M~'TFi~J?}5, <br />The tnallt opnnn~ Ys a crosscut 'tunnel F?400 feet in length <br />where it trams the 7ihert~w Aail oeln send a ra~i.sP on vein <br />1000 feet hiE''h to rbnneet"frith t~sis old workings, .'t'his raise. <br />is used for the main ss~aft" c~lbided lrtta t`Tzreg co~sartments, <br />There are three levels, 9:~'e_dr~'ts rttn~~inlr off nn the vein <br />both wayb f±°om ea83d dliiitft this i"s where "all the work is <br />earreel oft at pree~en~t. These levels are known a t4. level, <br />E level and Tunnel level, She method of ore extraction is <br />overhand stoping anc~' drif"Ei>~g dtitl~._atr..tSrtl~.s, Kind used <br />are lda.rphy and. Ingersoll Aid. The'tttethod' of timbering is <br />stalls and some sgeiare sets- moered~ with lagging. fihR <br />timbers are pine and smr~ae9, prefiared by hand and are sufPio- <br />ient to .cure aS.fety tTnd~sYR;round tramming is Bone hr <br />electrie m©tor, mules and hand, Sreel'rars are ixsed-for <br />tramminp~, some of the Gars are side dump and some~end dump. <br />Chutes are loaded bij hand and'geeavity, The system of ventil- <br />atom i~e•natural, System of .drainage emnlo~ed is ditches along <br />side ,of trac7c. All aid tit!#be2~+3~~have teen reztaoted from under- <br />ground ,staff the aartitary aondit~ns are good, <br />Elaetxioi^t~3. and mend:Ilrte are u:eed, fir ~Tight'`tit~ uncter~tnd <br />The mine 33as three axi0s~s ane by P level to `surface, one Uy <br /> <br />