During post-excavation study, this feature was reinterpreted as leveling activity perhaps related to the flooring of southern facing rooms related to the spaces delimited by walls 2372 and 2373 in the area south of Space 1A-7. Later leveling activity, however, has eliminated any structural remains of the southern part of the Phase 1A building.
The SU is a level of accumulation south of wall 2274 related to similar accumulation layers found throughout the area south of the courtyard.
compact grey deposit south of 2274