Descriptive Attribute	Value(s)
Abuts	Unknown.
Location	Originally in the north of Trench 71, but as the trench expanded to the north, in the middle of the trench.
Top (m)	Opening elevation: - 0.52 m above sub datum 71 C or 898.20 m.
Overlies	Unknown.
Underlies	Loci 14, 15, and 19.
Stage Description	Construction of the stylobate walls, the stylobates and columns of the West Triple Colonnade.
Phase Description	Phase IV: Nabataean Grand Design: 1st c. BCE to CE 1st c. The full Lower Temenos is constructed, complete...
Size	Complete size unknown, excavated size: 10.90 m in east west width-by-2.00 m (1.97 m) in height.
Bonds to	The southernmost pier of the Cryptoporticus system.
Description	As excavated, this is a seven course east west cross wall that may have been constructed as the terminus for the Cryptoporticus vaulted system found in Trenches 51 and 69 to the north in the Propylaeum. It seems to extend further to the west than we expected, and investigation should also continue to the east to confirm our understanding of how it relates to the Hexagonal Pavement of the Lower Temenos. Between the second and third rows from the top it is stepped. The ashlars are significantly larger at the bottom of the wall, being 1.02 m in width as opposed to 0.57 m in width at the top (they are set as headers).
Stage	Stage 1
Phase	IV
Bottom (m)	Closing elevation: Unknown, excavated to 2.00 m below sub datum 71 C or 896.72 m.
Combined with	The construction of the West Triple Colonnade and the Cryptoporticus arch system.
Definition	East West Stepped Retaining Wall
Architectural or Soil Locus?	Architectural