In the Land of the Apu: Cerro Llamocca as a Sacred Mountain and Central Place in the Pre-Columbian Andes of Southern Peru

Cerro Llamocca is a mountain with a summit elevation of 4,487 m asl in the southern Peruvian Andes. This paper presents a first overview of recent archaeological and paleoenvironmental research in its vicinity, and introduces new results from archaeological surveys and strontium isotope analyses. Our survey data show how the wider Cerro Llamocca area comprises an extensive complex of archaeological sites, composed of different sectors with public, domestic, and funerary architecture and rock shelters, occupied throughout the pre-Columbian period from the Early Archaic to the European invasion in 1532. Despite the extreme living conditions of this highelevation environment, Cerro Llamocca includes the oldest archaeological site hitherto recorded in the larger region: a rock shelter (PAP-969) on its south-eastern slope with evidence of human occupation in the Early Archaic period similar to 8000 BCE. Human activity in the Cerro Llamocca area reached its zenith in the Middle Horizon (CE 600-1000), at a time of a dry climate and when an expansive Wari state incorporated the worship of mountain deities into an imperial strategy to dominate local people. Our strontium isotope analyses of archaeological human dental enamel from a funerary rock shelter (PAP-942), alongside modern plants as reference data, indicate that the people buried here originated in the adjacent highlands. At a broader level, we study the roles of Cerro Llamocca as a sacred mountain or apu and central place over a long-term perspective, and how these functions integrated and focused religious, ritual, social, political, and economic activities over this highaltitude complex. Its central place function was linked to its sacredness, but also to its topography, provision of shelter, and geographical proximity to a range of critical resources such as water, creating resource dependencies that shaped socio-economic cooperation and exploitation. Although Cerro Llamocca has progressively lost many of these roles since the beginning of the colonial period, local communities continue to revere it as a sacred mountain today.