Descriptive Attribute	Value(s)
Top (m)	Opening Levels: 907.716 masl at Center, 907.006 masl at Southwest.
Architectural or Soil Locus?	Soil
Phase	XI
Definition	Collapse of the Deirdre Column.
Stage Description	Major collapse and architectural overburden throughout the Theater area.
Description	Collapse of the Deirdre Column, which fell to the southwest. Several drums were discovered, as were fragments of capital. The fallen drums sat on top of the wall collapse, Locus 4 (see below); therefore, this represents a relatively late event. Two drums of this column, and two halves of the lower part (acanthus order) of a capital were re-erected on this column.
Phase Description	Phase XI: Further collapse post CE 5th c., possibly the result of the earthquake of CE 512. The east Porch columns and Central Arch collapse and fluvial deposits continue ...
Stage	Stage 8
Bottom (m)	Closing Levels: 906.696 masl at Center, 906.316 masl at Southwest.