Some of the structures exhibit slab-vaulted masonry (indicative of the Early Classic and early Late Classic periods), while many quadrangles contain structures with veneer masonry (introduced at the end of the Late Classic and elaborated during the Terminal Classic period).
Some of the structures feature rubble-laid masonry (indicative of the Early Classic and early Late Classic periods), while many quadrangles contain buildings with plastered masonry (introduced at the end of the Late Classic and elaborated during the Terminal Classic period).