the locus that is located between 150 and 290 cm from the fixed point in the 3rd A support. It consists of brown-grey clayish soil with white inclusions. These are fallen parts of the eroded bed rock on the south side of the tunnel. At the bottom of this locus is the top of step 43 visible.
Elevations
Top step 43: 273.07 – 1.11 = 271.96
West side surface: 273.07 – 1.21 = 271.86
East side surface: 273.07 – 1.23 = 271.84
