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6) The rock mass exposed in the middle level of the quarry continues to have a higher fracture density and be more weathered than the rock excavated in the main pit. Iron oxide staining is common on many of the joint surfaces. 7) As noted in previous annual reports, a minor east-west striking unnamed fault zone is mapped in the northwest corner of the main pit, and is also visible in the east wall of the main pit (Figure 3). The rock within the fault zone is more broken and blocky, with parallel fracturing and iron-stained surtaces. Field measurements indicate that the fault has an apparent dip of 80° to 85° to the south and a general strike azimuth of 260° to 270°. The width of the fault zone varies in the main pit between approximately 20 and 50 feet. Excavation of the north benches will continue to intercept the fault, and the length of the fault exposure in the walls will increase as mining progresses. The fault will continue to be intercepted near the northwest corner of the pit as the pit is excavated to the final depth. Based on the average dip of the fault, at approximately an elevation of 6,260 feet, the fault may be exposed across the floor of the main pit. As mining in the main pit continues, monitoring of this interface will facilitate a better understanding of how the slope will behave. 9) Raveling conditions resulting from rock fragmentation during blasting and subsequent freeze/thaw conditions exist along each wall in the quarry, but appear more prevalent along the south wall possibly due to the north facing exposure. 10) The small surficial slide located in the exposed highwall face along the west wall, which was noted in previous annual reports, appears unchanged from over multiple years of observation. The slide does not have any impact on the overall stability of the wall, as it is limited to less than a single bench in height, and is considered a localized wedge failure. -12-