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200f Subsrtlence and GeolOCpc FielA Ot+sorval+ons <br />Box Canyon, Wnst Flobron. Apache Rocks. and South of Divide Mining Aroas <br />4.2.2 Location 3 <br />l_or.uiun 3 u uhu~c the midpoint .+f the mined pan of lung~c•all rand 19 an the edge of the Mitt <br />u~erlunking Racrn Gulch. \u subsidence cracks ~ecrc nbscncd. :1 delicately balanced ruck <br />rcrched un the edge of the cliff ~+as nut aitected by long»-all minim m the li-ticam _'?00 feet <br />hrlutc 11'tgurr R). :\nuther unswhle looking ruck, located eastward and snntr i0 teet hcluw the <br />"bnl;un•c rock." arprars un:dtlxted by mining. <br />The must likely rc~son ti,r the marked dtl7errnce hetwecn longn•all mining eficcts at Locations 2 <br />and ? un the same Ohio ('reek sandstone caifl> Icomrarc f~igures ?and ?with Figure -li is that, :u <br />the lungwall face moceJ under cliff area in Location ?. the Jiff urea was subjcctal to a wage-like <br />muliun that caused the rocks te+ tth lira castaard, then westward, as the mining face and <br />resulting subsidence tca«-cnntinueJ to nurse out of the area ufrnining uttluence. Iluae~•er. ut <br />831-032 750 Wright Water Engineers. Inc. Page 72 <br />December 2006 <br />f rgurc ' tiatuh«arJ cira of encl.full Iand.hJr taken m July 'uti~ 1'w,c is nl th. <br />nrektall IanJsLdr area sha+tit ut I i.~ur. n, but taken Imm a pnuu IcK;urJ u„rl6uarJ and <br />ura,wrJ r•t Ivnnt where hlgwc f• tea. lakrn. Ihr t•,:k(all lundslidr+ m hoth unur. are <br />ern .tmdar. I Ix ,irw anelr n+av uc.~,unt for am' ditlirencrs eccn m the ahdc area ahove <br />;ut.l kR Ira:nwnp ol'thr ntam Call :hdc anu. <br />