🇨🇱 Chile · Geoglyph
Salar de Huasco Geoglyphs (Huasco Salt Flat Lines)
Late Archaic to Formative (Late Archaic–Alto Ramírez–Tarapacá) · Tarapacá caravan / Alto Ramírez
30+ altiplano caravan geoglyphs (1000 BCE–600 CE) at 3,800 m around Salar de Huasco, Tarapacá.
🇨🇱 Chile · Geoglyph
Salar de Tara Stone Geoglyphs (Licancabur Salars)
Archaic to Formative (Tulán–Puripica) · Atacama caravan (Tulán, Puripica, early Atacameño)
20 high-salar ignimbrite geoglyphs (1200 BCE–1000 CE) at 4,316 m above Salar de Tara cathedrals.
🇺🇸 United States · Earthwork
Castalian Springs Mound Site
Mississippian Middle Cumberland (1100–1350 CE) · Mississippian (Castalian Springs phase)
Premier Middle Cumberland Mississippian town (1100–1350 CE) centered on mineral spring: two major platform mounds (Mound 1 6 m high 55×45 m, Mound 2 burial 3 m) plus smaller mound, large plaza and…