An archaeological culture of the Hualfín Valley (department of Belén, Catamarca) in Argentina's Northwest, defined by archaeologist Alberto Rex González; developed through three recognized phases (Belén I-III) from simple stone-free pit-houses to stone-walled hilltop settlements, the last phase shaped by Inca influence.
Absorbed into the Inca Empire's southern frontier in its final phase (Belén III, from c. 1480) and continued into the early Spanish colonial period before assimilation; recent radiocarbon dating suggests some Hualfín Valley settlements were occupied into the early 16th century.
Modern archaeological monograph on Azampay, a Belén-culture settlement site in the Hualfín Valley.