Figure 3: Nature Communications

Fig. 3

From: Pre-Columbian earth-builders settled along the entire southern rim of the Amazon

Fig. 3

Ditched enclosures of the UTB. a Typical position of ditched enclosures in the landscape, on plateaus overlooking rivers (site Mt-05); b Example of a small enclosure (site Z-Mt-29). Scale bar = 50 m; c Compound structure with a small enclosure in the interior of a larger one (site Z-Mt-05). Scale bar = 100 m; d Part of the site Z-Mt-04, showing the wavy pattern of ditch construction. Scale bar = 50 m; e Plan of a major regional centre, site Mt-07, with ditches outlined in black and mounds/walls outlined in white (Satellite image ©2018 Google, DigitalGlobe). Scale bar = 200 m; f Site Mt-04. Scale bar = 100 m