🇧🇷 Brazil · Hypothetical site
Akakor–Akrai — Southern Amazon Xingu Headwaters Phantom (Mato Grosso)
Cretaceous laterite mesa geology + modern 1970s hoax geology, no cultural · 1970s German mystic Karl Brugger branched hoax onto Roncador + Fawcett myth (no culture)
Southern Akrai phantom on Xingu headwaters Serra do Roncador — stepped lateritic benches 2 km misread as underground Akrai solar-mirror walls, Fawcett Z zone.