The site is often referred to as the 'Pukara de Chena' due to its defensive characteristics, though its primary function was likely ritualistic.
Archaeological studies have identified that the site aligns with the sunrise during the winter solstice.
It sits atop a natural hill that served as a territorial marker for the southern limit of the Tahuantinsuyo empire.
Excavations have uncovered ceramic fragments indicative of both Diaguita-Inca and local Aconcagua cultural styles.
The structure includes a series of terraces that were modified by Inca engineers to stabilize the steep hillside.
Huaca de Chena is an archaeological site located on the summit of Cerro Chena in the Maipo Valley, serving as one of the southernmost outposts of the Inca Empire. The site features a central circular stone structure that functioned as an Inca pukara or fortress and astronomical observatory. Excavations have revealed evidence of ritual burials and Incan construction techniques utilizing dry-stone masonry. It is situated within a ceremonial complex that functioned as a Huaca, a sacred place used for religious offerings and regional administration. The site overlooks the confluence of the Maipo and Mapocho rivers, providing strategic visibility of the surrounding valley. It represents a critical intersection between local Picunche culture and Inca imperial influence during the 15th century.
The highest point of the main stone structure, offering a panoramic view of the Andes mountains and the Santiago basin.
Wear sturdy hiking boots, as the terrain is uneven, rocky, and steep in sections.
Bring sufficient water and sun protection, as there is almost no natural shade on the hillside.
Ensure your mobile device has offline maps, as cell service can be intermittent on the trail.
Do not attempt the hike in the middle of a summer day; the lack of vegetation makes the heat extreme.
Do not touch or climb on any of the stone wall ruins; follow marked paths to prevent erosion.
