Recurrent

Nevertheless, people persisted. Since 2020, Alcaraz-Castano and his colleagues have excavated a site on the plateau called Charco Verde II in the Piedra river valley. Located about 1000 meters above sea level, Charco Verde II is a flat platform under an escarpment. Buried in the sediments, the team found fragments of charcoal from fires, animal bones with cut marks and signs of having been heated, and stone tools including blades and scrapers.

Radiocarbon dating suggests Charco Verde II was first inhabited between 21,400 and 20,800 years ago, and the residence ended between 16,600 and 15,100 years ago. “Occupations at the site were recurrent during 5000 years, but we still don’t know if there were prolonged periods where the site was not inhabited,” says Alcaraz-Castano.
–New Scientist