🇨🇦 Canada · Archaeological wonder
Head-Smashed-In Buffalo Jump
Archaic to Protohistoric 3600 BCE–1850 CE (use from 5700 years BP) · Plains Indigenous (Blackfoot / Niitsitapi – Peigan, Kainai, Siksika; earlier Besant, Avonlea)
UNESCO World Heritage buffalo jump (1981) used continuously 5,700 years: 300 m cliff with 10 m drop onto bone bed 11 m deep of bison skeletons, drive lanes marked by 240 cairns stretching 20 km to…