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Southwest Wall 1 <br />45 °/016 °) <br />Southwest Wall 2 <br />(45 °/036 °) <br />Legend <br />Equal Area, Lower Hemisphere Stereonet Plot <br />Friction Angle: 33° <br />\ Wall Orientation <br />Planes of Discontinuity Sets <br />, Critical zone <br />O Wedge intersection within the critical zone <br />0 Plane dip vector within the critical zone <br />