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2005 Subsidence and Geologic Field Observations <br />Box Canyon, W est Flatiron. Apache Rocka, <br />end South of ~ivlde Mmmg Areas <br />Renewed cocktail and landslide activity wus observed and photugrtphed on the head scarp. <br />These fresh scarps and slides and visible cracks in the sandstone cliffs at the head scatp indicalr <br />that more rc>Lkfalls and slides can be expected in the future as the rocks lail along fractures and <br />Fgure 8. Head scarp of the rockfalVlandslide area lasted above mined longwall panel 22. Renewed <br />raktall activity was observed in Juty 2004 after mining longwall panel was completed. Fresh scarps, <br />slides, and cracks in the cliffs, such as those visible in the enlargement of the lower cliff m the shade of <br />this image below, indicate that rockfalls have recently occurred and more raktalls can be expected. <br />figure 8A. Enlargement of <br />the cliff in the lower shadow <br />area (right center} of Figure B, <br />showing afresh-looking crack. <br />Bat-032.710 Wdghl Water Engineers, Inc. Pegs 18 <br />November 2005 <br />cracks (Fi@ures S and SAI. <br />