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,. <br />Pa3e 4 <br />In conjunction nit`: the rock tunnel drivir.G, the 5-entry .a ins For the <br />C~-,zo Seams will be driven due south, aFpre::i:ately 13,200 feet, [o the <br />edge of lease pericecer. <br />refer to Fi+,ure 2.1-: and T.1-~ (:line ?lan) for specific developoer.t <br />for apeciiic years. It can be seen frc~ obese fi3ures t`at once access <br />to ti;e L1pper Carbonera cr.t-ies •.rill ba driver. 3,000 feet Co the vest of <br />:~~ t~~::-el.,. Te r.,aias viii ca:, ce tar:;~~d south and supari~posed on <br />t~:c C~~-:~~o Seam Cain entries. The vest (of root: tunnels) entries of t}:e <br />1'p?er Cartiorera Sea; will continue ::ntil coal out^ep is reached. <br />.-. _... .._ _.. ~_ :..c .'ant ,,...G 5'_,...._..... JL ...~ .:~~ _. ~.+. :...._•... __uG ._.. <br />b9 SC~JeriCpObed On the Ca_eo Sc ~,. <br />It is proposed tt:at a 5-entry s;et:c will be used for the deyelorent <br />wore. i1:a ec~o eutsida entries will ba used for return airways. '[?ie <br />Solt entry will 'Je adjacent to o.^.e of [':e return airva}•s and separated <br />by percanent stoppin~s. :'^? r•::air.ing two entries will be used for <br />intai:e eir:::,•rs •:it?~ ar. i-take air•:a•: ediacent to tt;e belt entry, also <br />separated by per-.,acent eto;pin;;. Entry and cross-cut spacin~• will <br />vary free 75 to 1^0 feet bad tt,~ vidtt: will varq from 16 to 20 loot. <br />The ~1VP_n dieensions will depend upon the geologic conditions. <br />4s develov~ent entries rest': ehe paric_eter limits, panel entries will <br />be driven and room and pillar ^inin~ will begin. Panels will be <br />' • developed on a 3-entry systen and driven off of rains or. 450 loot <br />centers. Cne entry will be csed for an. intake airway, or.e will be uses <br />for return airway, end the final entry will be used for the belt Line. <br />i Entries, depending anon geologic conditions, will be 16 feet vide on 75 <br />foot canter. Farrier pillars, left eJ protect the Heins •:ill be <br />i approximately 2U0 feet vide. <br />Once panels (subbains) have been driven to Choir furlrest extent, a <br />bleeder syscea will be developed by driving connecting entries betveee <br />succeeding panels. °oo^s are to be driven off panel entries, a <br />distance of 3U0 feet to the prec=din: panel. Once three roods have <br />been developed, the first set of pillars will be recovered. t:ining <br />::ill be conducted in a retrest fasF.ion ur.[i1 the ms in entry barrier <br />pillar is reached. <br />:..e ~uncer Canyon `line viii Se totall•: dcoerdent upon the r:arke[ability <br />of t'.:e coal. The es[i~aated life of t~.c cir.e is to be 30 yeare, Annual <br />production of the r..ine in the first y••;r is expected to be 14C,9C0 tons <br />and will incressc by year 5 to a production 897,007 tons. Tt:e Caoee <br />S2a:s varies iro•_- 5 to TG .`e et in el:ic~::.ass within the permit area and <br />[~. !'ppcr CarSon~ra Seams varies in t:.icynuss from 4 to 7 feet. The <br />ca:cit:um riving height for [`.:e Cameo Sets is to Se 14 feet, vhereae the <br />Loper Carbcncra Se..~. Yill t;e totally r.ined and the ^inieum height to be <br />Wined will be 5 feet. l+ccordi:_ to standard mining practices a mini~ur~ <br />of 4U feet of intercurden is nzccsar~. far the use of sultiple scam <br />.lair n. ^verali recn•;ery of tiro _•rJ ~~a-s viii be -~.. o: ir.-place <br />• reserves. Sotal production over t~n^_ life of [e cir.e will be <br />