“…Not counting the hidden staircase area, the area of fill that constituted the plaza was approximately 90 x 80 m; using an average depth of 4.5 m, we calculate a construction volume of 32,400 m 3 , a massive undertaking of human labor and collective effort. The use of massive artificial terraces and limestone fills served to amplify horizontal space in a mountain environment, and similar techniques are observed at other highland Chiapas monumental zones, including Moxviquil (Paris, 2012), Yerba Buena (Bryant, 1988), Chinkultic (Ball 1980: 109), and Toniná (Becquelin and Taladoire, 1981;Taladoire, 2016). More broadly, they are also part of a long history of horizontal monumental architecture in southeast Mesoamerica, specifically artificial plateau and large platform construction, as exemplified by large artificial plateaus at the site of Aguada Fénix, Tabasco, dated to 1000-800 BC (Inomata et al, 2020).…”