Descriptive Attribute	Value(s)
Definition	String course.
Stage Description	Construction of the West Triple Colonnade, the West Exedra and the original "monumental" doorway to the west.
Phase Description	Phase IV: Nabataean Grand Design: 1st c. BCE to CE 1st c. The full Lower Temenos is constructed, complete...
Description	One nicely-hewn block underneath the threshold Locus 50 and similar to the string course under the West Exedra and above the West Exedra foundation level in Trench 16. The coarse stone is lined up north-south with the stylobate (Locus 48), under the southern column. It is also at roughly the same elevation. Finally, it is sitting on top of Locus 53, a bedding which looks similar to the stylobate walls elsewhere in the Lower Temenos. It is probably the remnant of the original third stylobate, 1.08 m long and 0.18 m thick.
Stage	Stage 1
Bottom (m)	Closing elevation: 899.056 m asl.
Phase	IV
Top (m)	Opening elevation: 899.236 m asl.
Architectural or Soil Locus?	Architectural