We investigated the Cerro Tuzgle cushion peatland (24˚09' S, 66˚24' W) located on the Argentine Altiplano at 24°S, north of the present-day South American subtropical dry zone. The core Tuz-694 was retrieved by percussion coring in December 2012 and analyses were performed during the years 2014 to 2021. We applied radiocarbon dating, XRF core-scanning, organic carbon and total nitrogen element content determination, stable organic carbon and total nitrogen isotope analyses, and cellulose stable carbon and oxygen isotope analyses. We extend the Cerro Tuzgle cushion peatland record to the middle Holocene covering the last 7200 cal yr BP. The aim of the study was to gain further knowledge of the Holocene development of the SASM and potential modulations of its latitudinal position.