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FlRurr 1. t:uulshdc Ia~mcJ on the eat Bide of Boy Canyon nl+ovc the hendgate entnes o(un-mined longwdl Panel 2U 'rho <br />land~hde b:u a tnuunum length of about 1.300 kct anJ a rtwunum width of 700 feet. <br />4.1.4 Traverse D-D' <br />lYa~crsc D-U' hcgtns at lurk in drill roads to the lop of Wcst Flatiron and ends at Drill Hole <br />It:~V•10. <br />• 'traversed aixrve the eastern part of un-mined longwall Panel 24 and the southeast pan of un- <br />mined longwall Panel 23, thence above the eastern pan of mined longwall Panel 14. <br />• 'Pravcrscd through mostly colluvium and soil, with Itxal outcrops of sandstone and mudstonc <br />of the Uhio Crock Member of the Mcsavcrdc l:olmation. <br />• Overburden thickness to the R-Seam ranges from 2.050 to 2.200 feet. <br />\o new subsidence-related cracks were observed, even near the cliffs at Drill Site R.A\r-10. <br />831-032.610 Wright Water Engineers, Inc. Page 12 <br />September 2003 <br />Subs~denco FtoW pbsorvelions <br />West Elk Mina <br />Juty 22.24, 2()03 <br />