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Spring 2009 Subsidence and Geologic Field Observations <br />Box Canyon, Apache Rocks, and South of Divide Mining Areas <br />• essentially five individual cracks or crack zones over a lateral distance of approximately 280 feet. <br />From north to south, the maximum widths of the individual cracks or crack zones, the centers of <br />which average 70 feet apart, are as follows: <br />Crack 1 zone. 2.0 inches (Figure 36) <br />Crack 2 zone. 2.5 inches (Figure 37) <br />Crack 3 zone. 3.0 inches (total width of several branching cracks) (Figure 38) <br />Crack 4 zone. 4.5 inches (two cracks with widths of 2.5 and 2.0 inches) (Figure 39) <br />Crack 5 zone. 3.0 inches (Figure 40) <br />• <br />• <br />831- 032.791 Wright Water Engineers, Inc. <br />November 2009 <br />Figure 36. May 2009 view of Crack 1 <br />zone at Apache Rocks, <br />Figure 37. May 2009 view of Crack 2 <br />zone at Apache Rocks. <br />