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West Wall 1 (Main Pit) 45°/091° <br /> N <br /> W } E <br /> Legend s <br /> Equal Area, Lower Hemisphere Stereonet Plot <br /> Friction Angle: 33' <br /> \ Wall Orientation <br /> Planes of Discontinuity Sets <br /> Critical zone <br /> * Wedge intersection within the critical zone <br /> Plane dip vector within the critical zone <br /> Lachel & <br /> FRI Associates <br /> Spec-Agg Quarry Kinematic Analysis: <br /> Golden, Colorado West Wall 1 (Main Pit) <br /> Project No.16C64003.00 <br /> Martin Marietta Material Figure 11 <br />