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<br />Mined Land Reclamation 13 March 17, 1992 <br />• The elevations show a change that reflects a drop in value of <br />0.12 feet on the average. Elevations are obtained by <br />trigonometry. <br />The closures of our elevations using trigonometric leveling have <br />been very good. Errors ranging from 0.10 feet to no error. <br />TABLE 6-SLOPE STABILITY <br />RELATIVE MOVEMENT <br />JULY, 1991 TO NOVEMBER, 1991 <br />Point Horizontal Distance Bearing Elevation <br />No. <br />U16 0.04 N22°03'E -0.01 <br />U17 0.09 N48°46'W +0.02 <br />U18 0.09 N60o04'W -0.03 <br />U19 0.09 N53o17'W No Change <br />U23 0.05 N50o40'W -0.01 <br />If you have any questions, please call. <br />• <br />E. LeRoy Black / <br />ELB:lml D:HD:BearCoal <br />BearMLR3.92 <br />Enclosure <br />Copy to: Bear Coal Company <br />ATTENTION: Dave Hurr <br />• <br />