🇧🇷 Brazil · Hypothetical site
Z City — Mato Grosso Rondon Second Phantom Ridge (Fawcett's Z east)
Cretaceous Cachimbo quartzite ridge geology + Munduruku rumor relay onto Fawcett notebook; Lost City Z proper is Kuhikugu 70 km SE (separate problem) · Natural quartzite ridge joints and tower karst misread as Z monumental walls (no culture) — real Z is Kuhikugu nearby
Fawcett Z second ridge phantom 8.5S 50.8W — quartzite joint walls 1.5 km and 8 m tower karst misread as Z citadel east of Cachimbo.