🇺🇸 United States · Earthwork
Ortona Indian Mounds
Late Woodland – Glades I–II (300 BCE–1150 CE) · Glades / Calusa tradition (Okeechobee Basin)
Late Woodland–Glades/Calusa affiliated town (300 BCE–1150 CE, peak 550–850) spread 5 sq mi along Caloosahatchee River north bank: 3 sand mounds (Mound A Plaza 3.5 m, Mound B and borrow mound), 2…