🇵🇪 Peru · Pyramid
Sechin Alto Principal Platform
Initial Period (Casma/Sechin, 1800–900 BCE, peak 1500 BCE) · Casma–Sechin culture (Initial Period, Casma Valley)
Largest Formative Period platform in Americas (1800–900 BCE, Initial Period peak 1500 BCE): principal mound 300×250 m base, 44 m high with two lateral broad platforms forming U around plaza 300×250 m…