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Spring 2014 Subsi�nce and Geologic Field Observations <br />South of Divide d Dry Fork Mining Areas (E -Seam) <br />Accessible areas within the SOD and Dry Fork mining areas were visited, examined and <br />photographed during the spring 2014 field visit to document subsidence - related features observed <br />since the last field visit and to record newly observed features in the active mining areas for future <br />reference (Maps 1 and 2). Field observations were made from a 4 -wheel drive vehicle and by foot <br />to efficiently complete the required work <br />Thirteen photographic observation points had been established and used since 2007 to view and <br />assess changes that may occur as a result of mining (mostly within the B -seam mining areas). <br />Many of these locations had been used fbr annual comparative purposes even before being more <br />formally established. Beginning with the spring 2013 field visit, nine of these points have been <br />removed pending substantial changes in those areas. Four of the established photographic <br />observation points were maintained givers their location within, or overlooking, the E -seam mining <br />areas. The two points within the mining area (historically referred to as Photographic Observation <br />Points #12 and #13) were revisited and renamed as Photographic Observation Points #1 and #2. <br />An annually visited location overlooking the Dry Fork drainage and areas to the south (formerly <br />- Photographic Observation Point #6) was renamed Photographic Observation Point #4 (this <br />location requires some hiking and is only visited sporadically depending on availability of time). <br />The Minnesota Reservoir/Monument Darn overlook location (formerly referred to as Photographic <br />Observation Point #7) was renamed Photographic Observation Point #5. Three new locations were <br />established during the spring 2013 field visit. Photographic Observation Point #3 is located above <br />E -seam Longwall Panel E4 on the MDW E4 -14 pad with a view of the Dry Fork drainage above <br />the central portion of E -Seam Longwall Panels E2 through E7. Photographic Observation Point <br />#6 is above E -seam Longwall Panel E4 a4d provides an elevated overlook to the west into the Deer <br />Creek Drainage from its east side (i.e., western ends of E -seam Longwall Panels E3 through E7). <br />Photographic Observation Point #7 is an elevated overlook to the east from very near Photographic <br />Observation Point #6 that provides views of the central and eastern ends of E -Seam Longwall <br />Panels El through E7. Photographs from each of these photographic observation points are <br />generally collected each field visit (except as noted) and reproduced from time to time in reports <br />for comparison purposes to demonstrate consistency or an occasional change in the landscape. <br />831 - 032.795 Wright Water Engineers, Inc. Page 7 <br />September 2014 <br />