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2 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.
🇧🇷 Brazil · Geoglyph
Late Intermediate to Late Horizon (Xingu polyglot / Kayabi) · Upper Xingu archaeological tradition / Kayabi
Southern Amazon forest geoglyph province distinct from Acre-Urubamba: 14 circular and rectangular enclosures (120-320 m) on Xingu headwater interfluvia (260 m, 9°45′S 52°21′W), documented by Mendeley…
🇧🇷 Brazil · Lost city
Late Pre-Columbian (c.700 – 1600 CE) · Xinguano tradition (Kuikuro ancestors)
Upper Xingu plaza town 8 km east of classic Kuhikugu — ring ditch, 700 m causeway and terra preta, 14 ha, 900–1350 CE.
