6/30/2013
Top elevation is taken from the center (2137.58).
This is in the NW third of the operation, relatively arbitrarily marked off by a set of three stones on the SE side, forming a line NE-SW. At the end of the day, the locus was limited on the NE side when we discovered that there is a continuous line of stones, likely forming a wall. At the SW side, the locus is bounded by the wall that runs across the operation on that side of the trench. On the NW side, the locus is bounded by the wall of the room, which was visible from the surface.
Top elevations:
N corner: 2138.005
E corner: 2137.75
Center: 2137.58
S corner: 2137.722
W corner: 2137.941
Bottom elevations:
N: 2137.43
E: 2137.466
C: 2137.435
S: 2137.396
W: 2137.45
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