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Subsidence and Geologic Field Observations <br />Apache Rocks and l3ox Canyon Mining Areas <br />July 12.15, 200-0 <br />4.4.1 Location 17 <br />This observation point is located about 1,500 feet northward of Apache Rocks. Thc elevation <br />and light conditions in the aftcnrnm sun from this location provide a good opponunity to <br />~Irrunicnl lire n+cklall ;m,l :an,i:hi+.; I~~~.ncd on the west side of West I latiron al the head of the <br />first cast draw of S}'Ivester Ciulch. <br />Recent movement (rockfalls attd local sliding) can be seen in the upper scarp areas <br />(Figure 22). Thc current condition of the rockfall.~landslide area has chtutged significantly, <br />wmparcd to how it looked in July 2003 (compare Figures 22 and 23). <br />Uvcrburcten depth from the rockthll-l:md,lidc urra to the B Scam ranges from about IA00 to <br />~,~UO feet. <br />Figure 22. Eastward view of a rocklall and lantlsllde area, that is bested On the west sttle of West <br />Flatiron. The base (toe) is hidden from view. The upper parts of the two IalUSlide areas (left center and <br />mtdtlle of image), which are located above mined longwall panel 22, reveal recent rockfall and slide <br />activity, compared to its appearance Wst year (Figure 23). <br />831.032.640 W nght W ater Englneent. Inc- Page 39 <br />SeDlembor 2004 <br />