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June 21, 2006 <br />Bowie No. 1 Mine Subsidence <br />Survey date June 20+21, 2006 <br />The following table shows the relative change in each subsidence station, <br />For the values based on the GPS Surveys. <br />From December 2005 to June 2006 <br />Station Bearing Distance Elevation <br />PL-1 S 52 08' E 0.03 - 0.07 <br />PL-2 S 32 19' W 0.06 + 0.11 <br />PL-3 S 87 42' E 0.05 - 0.06 <br />PL~4 S 69 27' E 0.06 - 0.03 <br />PL-5 S 51 ~ 34' E 0.08 + 0.01 <br />PL-6 S 72 11' E 0.09 - 0.07 <br />PL-7 S 36 32' E 0.13 + 0.14 <br />Sta 6 N 60 5T W 0.02 - 0.04 <br />Sta 14 S 47 01' E 0•~ + 0.09 <br />Sta 15 N ~ ~~ E 0.00 - 0.01 <br />Changes in the coordinate values from survey to survey may be due to: <br />-Actual changes due to subsidence activity. <br />- Random errors inherent to any field survey. <br />If you have any questions please pll <br />~ ~~ 3 ~~t~ <br />Stephen B. Cragg <br />S1-13 <br />