🇺🇸 United States · Earthwork
Bottle Creek Indian Mounds
Mississippian Pensacola phase (1250–1550 CE) · Mississippian (Pensacola culture)
Pensacola-Mississippian island capital (1250–1550 CE) on low swamp island (0.4 sq km) in Mobile-Tensaw Delta: 18 platform and burial mounds (largest Mound A 11 m high 90×60 m) enclosing 5 plazas on…