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Spring 2008 Subsidence and Geologic Field Observations <br />Box Canyon, Apache Rocks, and South of Divide Mining Areas <br />• <br />Figure 6. Spring 2008 eastward view of the east side of Box Canyon showing the active rockfall/landslide area <br />located above the mined, eastern part of Longwall Panel 21 near MDWs 21-32, 21-36, and 21-38 (Location 5). This <br />photograph was taken from a slightly different angle from the one obtained in fall 2007 (Figure 7) because the drill <br />road to the MDW 21-18 well pad was impassable due to construction activity. <br />• <br />Figure 7. A fall 2007 eastward view across Box Canyon of the same active rockfallilandslide area <br />shown in Figure 6 except from Photographic Observation Point R. <br />• 831-032.790 Wright Water Engineers. Inc. Page 17 <br />August 2008