Published online by Cambridge University Press: 21 November 2016
The settlement of high-altitude uplands by early agropastoralists demandedspecific kinds of social and economic adaptation. Upland valley systems innorth-west Argentina were used extensively during the Formative period (200BC to AD 850). New investigations of the alluvial fans of the Tafí Valleyshow how the occupation history of the region developed across time andspace, demonstrating remarkable stability over 1000 years of agropastoralexploitation. The dense but scattered distribution of early farmers acrossthis landscape highlights household continuity through a period of regionalpopulation growth.