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_ ,. 5 <br />-'- ~ <br />. <br />-~- - - - ~ <br />lower contact ore smelting ore.,lli of the uppar;aontaot- '~: <br />ie conoe¢ttrating ores with en average of ~10.00.par•ton.,- ~Od <br />Th~ production,ia about 1600 tons per month... .-. Tote <br />SURFA CE PLANT. <br />_. __ _.__ ,_.. .. Tote <br />~ ~-- <br />The aurfaoe plant at mine is boarding and bunk-house„,, i <br />Teta <br />stare house, blackmmith shop and tram terminal,- have,. good Tota. <br />fire protection, pipe line from Bridal Veil creek with , I Tota: <br />90 foot head. ~ <br />E 7C P L O S I V E S. I i 8 ml <br />Du Pont 4 ' <br />0~ powder, imported Z L fuse; 5-x Daps and I i Z <br />~ <br />wooden tamping bars are used. Explosives 1x~ excess of- I 10 is <br />one days euppiq are not stored underground. The-average ~ 1 1t <br /> <br />amount of explosivee•kept itt storage is 500 lbs. This I <br />~ 1 fiE <br />is kept in a frame building about 300 Peet from tunnel ~ 4 b1 <br />or any other buildings and used for this purpose only. ~ 2 Fo <br />oils, candles and other combustables are atoned in a I I 1 sv <br />i <br />store rooID. The da~ica for thaeing powder is a double I I S ~ <br />hot water boiler. ! I 3 mi <br />HININ O AND 1(INE-1(aTH 0 D3 1~' <br />The main opening is a tunnel konwn ea the Ironolad tunnel I I Avers, <br />which develops the lower contact this is connected by i <br />upraises f.^om the lower contact to the upper which le I <br />j Coet ~ <br />one hundred feet above with ndite running out to enir- I Coat i <br />faoe in ceverai places. i Coat ~ <br />There is work going on in both tursiela at present the i Cost e <br />ore from the upper oontaot ie dumped through a shale ~ <br />that conneota one contaot with other. The method of ore <br />extraction is done by air drills Ingersoll Rand era uald. <br />The method of timbering Se pillars and oocasionnlly a <br />few posts the roof is ve~j good it does not need many <br />timers. ?he tlmh~re that are used ere Dins and epruoe <br />prepared by head and are eultioient to sedans safety. <br />Underground trammL~g is done br mules and hen d. Steel ~ AvsraF <br />Coet = <br />Cost = <br />~ Cast y <br /> <br />No per <br />~ the mL <br />~ Broad <br />sera are used toe traraaing. T}1e sYeteID e! ventilation <br />is natural. Lip~-ting is dens by lamps dad dandles. <br />The mine has three exits on both oaf tunaele and there <br />la a teod mnwey that oonneote both eanteots and ladders <br />ar 1n tend shape dad sead~. at ail tlase tot eopieyae. with U <br />~ Bureau <br />! aooidar <br />I a6ainel <br />D°stat! <br />