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Spring 2014 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mininq Areas (E -Seam) <br />Figure 3. Spring 2013 image looking south <br />along the northwestern edge of the MDW E4 -8 <br />pad at two sub - parallel subsidence cracks. <br />These cracks coincide with the greatest fill <br />depth of the pad but do not exhibit the <br />characteristic parallel orientation to the edge of <br />the pad as is expected with differential <br />settlement. <br />4.4 Photographic Observation Point 1 <br />Figure 4. Spring 2014 image looking in the <br />same direction at the same area. Erosion has <br />obscured the cracks but nonetheless provide <br />some remaining evidence. <br />Photographic Observation Point 1 (previously Photographic Observation Point 12) is located along <br />Traverse C -C' west of the Dry Fork Road crossing of Dry Fork. This photographic location was <br />established to view an area of free - standing sandstone columns (or stacks) above the eastern end <br />of E -seam Longwall Panel E 1 to observe evidence of subsidence. <br />A comparison between photographs obtained in fall 2009 and spring 2010 revealed that one of the <br />rock columns had collapsed shortly after mining beneath the area. Photographs obtained regularly <br />since spring 2010 of this same rock outcrop area (including spring 2014) reveal that there has been <br />831 - 032.795 Wright Water Engineers, Inc. Page 13 <br />September 2014 <br />7."�s <br />Y7 <br />MR <br />Figure 4. Spring 2014 image looking in the <br />same direction at the same area. Erosion has <br />obscured the cracks but nonetheless provide <br />some remaining evidence. <br />Photographic Observation Point 1 (previously Photographic Observation Point 12) is located along <br />Traverse C -C' west of the Dry Fork Road crossing of Dry Fork. This photographic location was <br />established to view an area of free - standing sandstone columns (or stacks) above the eastern end <br />of E -seam Longwall Panel E 1 to observe evidence of subsidence. <br />A comparison between photographs obtained in fall 2009 and spring 2010 revealed that one of the <br />rock columns had collapsed shortly after mining beneath the area. Photographs obtained regularly <br />since spring 2010 of this same rock outcrop area (including spring 2014) reveal that there has been <br />831 - 032.795 Wright Water Engineers, Inc. Page 13 <br />September 2014 <br />MR <br />Figure 4. Spring 2014 image looking in the <br />same direction at the same area. Erosion has <br />obscured the cracks but nonetheless provide <br />some remaining evidence. <br />Photographic Observation Point 1 (previously Photographic Observation Point 12) is located along <br />Traverse C -C' west of the Dry Fork Road crossing of Dry Fork. This photographic location was <br />established to view an area of free - standing sandstone columns (or stacks) above the eastern end <br />of E -seam Longwall Panel E 1 to observe evidence of subsidence. <br />A comparison between photographs obtained in fall 2009 and spring 2010 revealed that one of the <br />rock columns had collapsed shortly after mining beneath the area. Photographs obtained regularly <br />since spring 2010 of this same rock outcrop area (including spring 2014) reveal that there has been <br />831 - 032.795 Wright Water Engineers, Inc. Page 13 <br />September 2014 <br />