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Spring 2009 Subsidence and Geologic Field Observations <br />Box Canyon, Apache Rocks, and South of Divide Mining Areas <br />• previous photographs from this location show there to be little change (see Figures 20 and 21 of <br />the fall 2008 subsidence monitoring report). <br />The first reference to this location in this report can be found in Section 5.1 .2 as observed from <br />Photographic Observation Point 8. Observations from this location also indicate that there has <br />been relatively little change since this rockfall /landslide was first observed in spring 2008. <br />• <br />Figure 25. Southeastward view from Photographic Observation Point 2 during spring 2009 of a <br />rockfall /landslide area in a massive sandstone cliff of the Ohio Creek Member of the Mesaverde <br />formation above the entries between mined Longwell Panels 19 and 20. <br />5.6.3 Photographic Observation Point 2 <br />Location 6 is also the site of Photographic Observation Point 2. For the past several years this <br />location has been used to observe a rockfall /landslide area located 4,400 feet south of this point <br />in the upper, massive sandstone cliff of the Ohio Creek Member of the Mesaverde Formation <br />(Location 8 on Map 1). Figure 26 shows this area as observed from this observation point. <br />Comparisons to previous photographs from this location show there to be little change (see <br />Figure 13 of the spring 2007 and Figure 25 of the spring 2008 subsidence monitoring report). <br />r� L <br />831 -032.791 Wright Water Engineers, Inc. page 38 <br />November 2009 <br />