Interface over most of the area extending between 17002 and 17012. During removal of charcoal layer above (17111) near wall 17002 exposed chocolate layer below (17114). Gave interface SU #, photographed a remaining patch, but will not take points. May be equal to 17112 west of wall 17002.
SU 17113: view toward north; interface layer above chocolate (17114) at level of foundation of wall; partially excavated, but preserved in profile.
SF17_354 = SU17113