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TABLE OF CONTENTS <br />Page <br />1.0 <br />• <br />SUMMARY <br />OF MAJOR FINDINGS .................................................. <br />..............................1 <br />2.0 <br />FIELD <br />RECOGNITION OF SUBSIDENCE AND NON - SUBSIDENCE FEATURES IN <br />THE <br />WEST ELK MINE AREA ........................................................... <br />..............................5 <br />2.1 <br />Subsidence Cracks and Compression Features ................................... <br />..............................5 <br />2.2 <br />Construction Cracks .............................................................................. <br />..............................6 <br />2.3 <br />Desiccation Cracks ................................................................................ <br />..............................7 <br />2.4 <br />Gravity- Induced Cracks ......................................................................... <br />..............................8 <br />3.0 <br />SUBSIDENCE PREDICTION ........................................................... <br />3.1 <br />E1 Panel Subsidence Monitoring Grid .................................................. <br />.............................10 <br />.............................11 <br />3.2 <br />Monument Dam /Minnesota Reservoir Monitoring Data ....................... <br />.............................12 <br />3.3 <br />B -Seam Survey Information of Panel 25 .............................................. <br />.............................13 <br />4.0 <br />OVERVIEW <br />OF SPRING 2009 FIELD STUDIES ............................. <br />.............................14 <br />5.0 <br />TRAVERSES AND OBSERVATIONS IN THE BOX CANYON, <br />APACHE ROCKS, AND <br />SODMINING <br />AREAS ...................................................................... <br />.............................17 <br />5.1 <br />Traverse A- A ......................................................................................... <br />.............................17 <br />5.1.1 Location 1 ........................................................................... <br />.............................18 <br />5.1.2 Photographic Observation Point 8 ...................................... <br />.............................20 <br />5.2 <br />Traverse B- B ...................................................................................................................... <br />22 <br />5.3 <br />Traverse C- C ........................................................................................ <br />.............................23 <br />5.4 <br />Traverse D- D ........................................................................................ <br />.............................23 <br />5.4.1 Location 2 ........................................................................... <br />.............................24 <br />5.4.2 Location 3 ........................................................................... <br />.............................25 <br />5.5 <br />Traverse E- E ......................................................................................... <br />.............................27 <br />5.5.1 Location 4 ........................................................................... <br />.............................27 <br />5.5.2 Location 5 ........................................................................... <br />.............................32 <br />5.5.3 Photographic Observation Point 1 ...................................... <br />.............................34 <br />• <br />5.6 <br />Traverse F- F ......................................................................................... <br />.............................36 <br />5.6.1 Location 6 ........................................................................... <br />.............................36 <br />5.6.2 Location 7 ........................................................................... <br />.............................37 <br />5.6.3 Photographic Observation Point 2 ...................................... <br />.............................38 <br />5.7 <br />Traverse G- G ........................................................................................ <br />.............................39 <br />5.8 <br />Traverse H -H' ....................................................................................... <br />.............................39 <br />5.8.1 Location 8 ........................................................................... <br />.............................40 <br />5.8.2 Photographic Observation Point 3 ...................................... <br />.............................40 <br />5.8.3 Location 9 ........................................................................... <br />.............................44 <br />5.8.4 Photographic Observation Point 4 ...................................... <br />.............................44 <br />5.8.5 Photographic Observation Point 5 ...................................... <br />.............................46 <br />5.9 <br />Location 10 ........................................................................................... <br />.............................46 <br />5.10 <br />Traverse 1 -1' .......................................................................................... <br />.............................49 <br />5.10.1 Location 11 ......................................................................... <br />.............................50 <br />5.10.2 Location 12 ......................................................................... <br />.............................52 <br />5.11 <br />Traverse J- J .......................................................................................... <br />.............................53 <br />5.11.1 Location 16 ......................................................................... <br />.............................54 <br />5.11.2 Location 17 ......................................................................... <br />.............................56 <br />5.11.3 Location 18 ......................................................................... <br />.............................56 <br />5.11.4 Location 19 ......................................................................... <br />.............................57 <br />5.11.5 Location 20 ......................................................................... <br />.............................58 <br />5.12 <br />Traverse K- K ...................................................................................................................... <br />59 <br />5.12.1 Location 13 ......................................................................... <br />.............................59 <br />5.12.2 Location 14 ......................................................................... <br />.............................60 <br />5.12.3 Location 15 ......................................................................... <br />.............................60 <br />5.13 <br />Traverse L- L ......................................................................................... <br />.............................61 <br />5.14 <br />Traverse L1 -L1' .................................................................................... <br />.............................61 <br />• <br />5.14.1 Location 21 ......................................................................... <br />.............................62 <br />5.14.2 Location 22 ......................................................................... <br />.............................62 <br />5.15 <br />Photographic Observation Point 6 ........................................................ <br />.............................63 <br />