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3.2 Traverse I -I' <br />Fall 2012 Subsidence and Geologic Field Observations <br />Box Canyon, Apache Rocks, and South of Divide Mining Areas <br />these traverses (i.e., topographic description, overburden depth, exposed surficial materials, etc.) <br />are not included in this report, but can be found in earlier versions of this semi - annual report (see <br />Spring 2011 Report). <br />Photographs obtained from Photographic Observation Points 3 (located along Traverse H -H') <br />was compared to images obtained from this location during previous visits. These photographic <br />comparisons found no observable changes. <br />Traverse I -I' begins at point D (of Traverse D -D') above the southern edge of mined B -seam <br />Longwall Panel 14 and continues southward across the central portion of mined B -seam <br />Longwall Panels 14 to 17 and across the east end of mined E -seam Longwall Panels El and E2 <br />and unmined E -seam Longwall Panel E3 to a connection with the Dry Fork of Minnesota Creek <br />(Dry Fork) road near the eastern edge of Section 34, T13S, R9OW of the 6 P.M. (see Maps 1 <br />and 2). The southern end of this traverse is above mined E -seam Longwall Panels El, E2 and <br />E3. MDW pads located (and visited) along this traverse include E2- 51/52/54, E3 -51 and E3 -55 <br />(Map 2). Overburden depths along this traverse vary from 1,390 to 1,600 feet over the B -seam <br />and 1,100 to 1,300 feet over the E -seam. No subsidence related features were noted at these <br />locations. As noted in the Fall 2011 Report, previously existing MDW pads for E1 -48 and E1- <br />52/53/55 along this traverse have now been reclaimed. In addition, all wellhead equipment on <br />the MDW pad for E2- 51/52/54 has been removed and reclaimed, and the pad is now being used <br />as a temporary storage area. <br />3.3 Traverse J -J' <br />Traverse J -J' begins at Traverse I -I' and continues in a west/northwestward direction along a <br />ridgeline above portions of mined E -seam Longwall Panel El and E2 to numerous MDW drill <br />pads (see Maps 2 and 4). Overburden depths along this traverse vary from 1,100 to 1,450 feet <br />over the B -seam and 850 to 1,200 feet over the E -seam. <br />831 - 032.794 <br />April 2013 <br />Wright Water Engineers, Inc. Page 6 <br />