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Fall 2014 Subsidence and Geologic Field Observations <br />South of Divide and Dry Fork Mining Areas <br />the underlying sandstone subcrop is considered to be the reason for the deep and persistent cracks <br />at this location because of its unyielding deformational characteristics. <br />3.13 Photographic Observation Point 5 <br />This photographic observation location was established during the spring 2013 field visit as a <br />baseline for assessing potential changes to the landscape associated with E -seam longwall mining <br />within and west of the Deer Creek drainage. This vantage point gives a panoramic view of the <br />Deer Creek drainage from its headwater region downstream along most of the drainage to near its <br />confluence with Dry Fork. Views from this location (no image provided in this report) present the <br />topography over the western end of E -seam Longwall Panels E3 through E7. Longwall mining <br />beneath this area in late 2013 or early 2014 created several cracks in the brittle sandstone outcrop <br />at this location. Figure 9 shows one such crack with maximum width dimension of 0.5 inches. <br />A panoramic image (not shown) obtained from this location during our fall 2014 visit was <br />compared to the previous images from this location. No noticeable differences were identified. <br />3.14 Photographic Observation Point 6 <br />Approximately 100 feet north of the Photographic Observation Point 5 is Photographic <br />Observation Point 6. This location was established during our spring 2013 field visit and provides <br />a northeast to south panoramic view from the Ragged Mountains to Coal Mountain. A panoramic <br />image was obtained from this location during our fall 2014 visit and compared to the previous <br />images from this location. No noticeable differences were identified. <br />831 - 032.796 Wright Water Engineers, Inc. Page 17 <br />March 2015 <br />