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Fall 2013 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas (E -Seam) <br />traverse is adjacent to Minnesota Reservoir and outside the proposed E -seam mining influences of <br />Longwall Panels E1 through E9. <br />Photographic Observation Point 1 is located along this traverse approximately 300 feet southwest <br />of point G of Traverse G -G'. Photographs were taken at this location to compare images taken <br />during previous field visits. No noted changes were observed. <br />Several side roads lead a short distance away from the Dry Fork Road to MDW pads. These roads <br />and pads were previously described as separate traverses. Starting with the Spring 2013 Report, <br />only the longest of these side roads to MDW pads are individually discussed as a separate traverse <br />(see Traverse D -D', E -E', and F -F'). The smaller traverses (sub - traverses) will be included in the <br />discussion for Traverse C -C'. <br />The three sub - traverses between Traverse G -G' (Horse Gulch) and Traverse F -F' revealed no new <br />subsidence - related features during our fall 2013 field visit. This was also true for the MDW pads <br />(E3 -32.5, E -36 and E340) located adjacent to the Dry Fork Road and east of Traverse F -F'. <br />Subsidence features had been previously observed during times of active mining along each of <br />these traverses or at the MDW pads, but subsequent observations have found these features to have <br />healed substantially within the first year and were not visible during the fall 2013 field visit. <br />Another of the small sub - traverses along Traverse C -C originates on the north side of the Dry Fork <br />Road approximately 600 feet west of point A'. This small traverse leads to MDW pads E3 -47 and <br />E344. Mining occurred beneath this area in March 2012. Subsidence - related cracks previously <br />noted on each of these pads were no longer visible during our fall 2013 field visit. <br />On the south side of Dry Fork Road approximately 1,300 feet west of point A' is another small <br />sub - traverse. This sub - traverse leads to MDW pads for E4 -09 and E4 -10. The E -seam longwall <br />mining face of Panel E4 was passing beneath this area at the time of our spring 2013 field visit. <br />As a result, subsidence cracks were observed on both pads and along the road near the MDW E4- <br />10 pad. These subsidence cracks were no longer visible at the time of our fall 2013 field visit as <br />shown in Figures 1 through 4. <br />831 - 032.795 Wright Water Engineers, Inc. Page 6 <br />January 2014 <br />