Ancient Maya submerged landscapes and invisible architecture at the Ch'ok Ayin residential household group, Belize

Pole-and-thatch structures built directly on the ground surface were likely common in antiquity in the Maya area as residences, kitchens, workshops, storehouses, and for other uses, although the actual wooden architecture normally decays and often leaves no mounded remains. Various estimates are made to account for these “invisible sites” in population estimates based on mound or plazuela groups. Wooden building posts and associated artifacts preserved in mangrove peat below the sea floor in Punta Ycacos Lagoon, southern Belize provide an opportunity to address population size, material wealth, and household activities at “invisible sites.” The distribution of wooden building posts and artifacts at the Ch’ok Ayin underwater site indicates it was a residential household group with several pole-and-thatch buildings around a plaza. The householders focused on salt production, with artifactual evidence of brine enrichment and brine boiling, in addition to other supporting activities, and participated in Late Classic marketplace trade for goods from varying distances. Holocene sea-level rise that flooded low-lying coastal areas also obscured ancient Maya sites, making them “invisible” in the modern landscape.