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l <br />MINING AND MINE METHODS. <br />The principal opening in the CARDI!}AL tu'nnel~t},e mout}t of vrhich in on <br />the north Hide of Caribou gulch about 500 ft.west of the station of <br />Cardinal on C.& lJ.W.R.R. ;ize 6'Y,B~,~course. N,lf,°28'YI,3186 ft,to <br />point where it cuts the Bouldez~County vein on which drift runs 5,73°10'1;: <br />124 ft.to breant and li.73°lU'Pl,400 ft. The went drift in being driven <br />at the present•time~to point under Boulder County s}taft for purposo of <br />raining to name,(Eotir.,ated to he 600 ft.more to drive.) <br />T}te boiler house and smit}t s}lop are ]ocated at Icouth of tunnel which <br />in provide with fire door and exit shaft to sttrfaca located 125 ft, <br />from mouth of tunnel. <br />1lethod of mining-drifting and overhand stopingtuRing 3,° Sergeant <br />air dri].1at80= prenaure, <br />Timbering-Tunnel sets square sets and stulln, <br />Undehground trarm,ing-1600h steel cara(Truax).Trackage-lA" ),vagetl3tx <br />i <br />i rail. <br />~ Drainage-Hater boxtl0°n"24"~floar of tunnel. <br />Ventilation-17.rough water box with stand pipen~at several points, <br />provided with air ,jets from air linerwl.ich sue};s in the mine air. <br />Sanitary conditions-good. <br />Underground lighting-cantles, <br />I DOULDF.R COUNTY SHP.FI'-elevation 9fiG0 ft.tS~trlp~.t in clearttwo cony <br />~ partment(cage and laddexwa• vertical 34 <br />!) t 6 ft.dcel.Timbered with square <br />~ nets, (ltot in use at present as water fills tror4;ings up to point 1.10 ft. <br />from surface, <br />S}taft has levels ut- <br />j Adit level 800 ft.lnug cutting shaft at depth of 40 ft, <br />100 ft.level running 227 ft.east and 632 ft.wont; <br />180 ft.level running 96 ft.east and 352 ft.west; <br />230 ft.level running 314 ft.east and 355 ft.weat; <br /> <br />I <br />i <br />i <br />330 ft.level running 26 ft,east and 34 ft.went. <br />