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Material stripped from areas within the South Quarry in 2013 was deposited in the Central <br />Quarry as part of ongoing quarry reclamation. The quarry appears to be 7/8 reclaimed to an <br />approximate elevation of 6500 feet. The reclamation began at the northern end of the quarry <br />and has continued south. 2013 reclamation was conducted as shown on Figure 4. <br />3.3 South Quarry <br />Geotechnical data was collected for areas mined in the South Quarry in 2013. These areas <br />included four mined highwalls and benches at elevations 7550, 7470, 7120, and 6640 and <br />three haul road highwalls at elevations 7335 — 7270, 7260 — 7175, and 7170 — 7125. A <br />runaway truck ramp highwall at elevation 6875 was also included. A general configuration of <br />the South Quarry is shown in Figure 4. Mining during 2013 did not increase the South <br />Quarry beyond the depths established in 2012, but represents expanded extraction to the <br />south (north facing), west (east facing), and north (south facing). <br />The rock type observed within the South Quarry is consistent with rock type found within the <br />North and Central Quarries, as well as rock type found at the South Quarry which has been <br />described in previous geotechnical addenda. The rock type of the South Quarry is generally <br />described as fine- to medium - grained granitic gneiss or biotite gneiss. Occasional intrusions <br />are present in the granitic gneiss. Intrusions are composed of biotitic schist and pegmatitic <br />material. Shear zones are also present and visible. Shear widths range from several inches to <br />approximately 20 feet. <br />Rock type is typically slightly weathered to moderately weathered. Several highwall sections <br />are more highly weathered. These sections are typically at higher elevations and are <br />composed of older rock. Two prominent joint sets are visible throughout the South Quarry <br />with prominent foliation. Joint sets are spaced by several inches to approximately 10 feet. <br />The aperture of the joint sets is typically approximately one -tenth of an inch. Larger <br />apertures are likely the result of mine blasting. The rock surfaces of the prominent joint sets <br />are typically slightly rough to rough; joint openings range from very tight to moderately <br />open. Iron staining is present on most joint faces, with less staining present at lower <br />elevations. Joints generally do not contain infill material with several localized exceptions. <br />Foliation spacing is highly variable and ranges from less than one inch to several feet. The <br />aperture of the foliation is typically tight; less than one -tenth of an inch. Foliation plane <br />surfaces are generally characterized similarly to the two prominent joint sets: the surface is <br />slightly rough to rough, slightly weathered to moderately weathered with iron oxide staining. <br />Infill material is not present except in localized incidences. <br />Sillimanitic gneiss associated with the shear zone was exposed and excavated on the 6640 <br />bench in localized areas. The persistence of this material appears to be consistent with the <br />shear zone trend mapper in previous geotechnical addenda. <br />GEI Consultants, Inc. 7 January 2014 <br />2013 Momson Quarry Annual Report <br />