🇪🇨 Ecuador · Ancient city
Upano Valley Urban Complex
Formative to Regional Development (500 BCE–600 CE) · Kilamope (Upano) culture; Sangay phase Huapula
Lost Amazon cities (500 BCE–600 CE) under Upano forest—20 towns, 6,000 mounds and 25 km of roads revealed by 2024 LiDAR.