PERMFILE110491

• Permit No: C1980007
• IBM Index Class Name: Revision
• Doc Date: 12/2/2004
• Doc Name: Exhibit 60B Certification Subsidence Evaluation for the South of Divide Mining Area
• Type & Sequence: PR10
• Media Type: D
• Archive: No

LIST OF FIGURES
Figure 1 South of Divide Panel Layout and Projected E Seam Mining Thickness
Figure 2 Conceptual Diagram Showing Subsidence Processes
Figure 3 Diagram Showing Subsidence Pmfile and Parameters
Figure 4 Graph Showing Subsidence Factors
Figure 5 Graph Showing Maximum Tilt and Horiwntal Strain
Figure 6 Comparison of Model Predicted vs. Observed Subsidence
Figure 7 Panels El Through E8 -Vertical Displacement
Figure 8 Panel E9 Traverse and Panel ES Longitudinal Profile of Vertical Displacement
Figure 9 Subsidence Development Curves
Map 1 Landslides and Rockfalls in the South of Divide Mining Area -July 2004
LIST OF TABLES

Table 1 Maximum Subsidence Parameters, West Elk Mine
Table 2 Maximum Subsidence Parameters, South of Divide Mining Area
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