🇧🇴 Bolivia · Earthwork
Llanos de Moxos – Casarabe Culture Monuments
Late Intermediate, Casarabe culture · Casarabe (Moxos) savanna farmers
1,000 km of causeways + 147 forest-island cities (500–1400 CE) in seasonally flooded Beni savanna.
🇧🇷 Brazil · Geoglyph
Acre Geoglyphs (Geoglifos do Acre)
Pre-Columbian 1–1500 CE · Acre / Xinguano tradition
Hundreds of large ditched enclosures (squares, circles, U-shapes) revealed since 1977 by deforestation, built by pre-Columbian Amazonian cultures using forest clearance, dated 1–1500 CE, associated…