A frozen Inca child discovered in 1954 at 5,430 meters. CT scans revealed ceremonial objects inside the burial bundle. The boy had eaten maize just before death.
Jason Quinn, CC BY-SA 3.0, via Wikimedia Commons
A 500-year-old sacrifice
On February 1, 1954, a group of muleteers climbing Cerro El Plomo in the Andes near Santiago, Chile, found a burial site just below the 5,430-meter summit. Inside a small stone structure, they discovered the frozen, perfectly preserved body of an eight-year-old boy. This was the first discovery of a high-altitude Inca human sacrifice, a ritual known as capac hucha or qhapaq hucha. The extreme cold and dry conditions of the mountain naturally mummified the body, preserving skin, hair, and internal organs for nearly 500 years.
The boy was a participant in one of the most important ceremonies of the Inca Empire. The capac hucha ritual involved sacrificing children, considered pure and perfect, to the mountain gods, or apus. These sacrifices occurred during important events, such as the death of an emperor, or to stop natural disasters. DNA analysis suggests the boy came from the Collasuyu region of the Inca Empire, which includes the area around Lake Titicaca. Isotope analysis of his hair and hyperkeratosis (thickening of the skin) on his feet indicate he walked for many months over hundreds of kilometers to reach the mountain.
Evidence from the past
Scientific analysis of the Plomo Mummy shows his final months. He was dressed in high-status clothing: a black alpaca wool tunic, a gray shawl, and a headdress of condor feathers. His face was painted with red and yellow stripes, and his hair was styled into more than 200 braids. He wore a silver bracelet, a sign of his elite status.
For decades, scientists believed the boy died from hypothermia after being lulled to sleep with coca leaves and maize beer. However, recent, more detailed CT scans have challenged this view. The newer scans suggest the boy may have died from a precise blow to the head, a method of sacrifice described in the accounts of Spanish chroniclers but not previously confirmed by physical evidence. Analysis of his hair also confirmed the presence of cocaine, indicating he chewed coca leaves to combat the effects of the high altitude during his long trip.
The burial included several offerings. Among them were a silver female figurine dressed in miniature textiles and a gold llama figurine. A small bag found with the body contained his nail clippings, baby teeth, and locks of hair. These objects, along with the boy himself, were meant as gifts to the mountain deity.
💡Fun Facts
The mummy is the first discovery of a frozen, high-altitude Inca human sacrifice.
The boy's hair was meticulously styled into over 200 individual braids, which remain perfectly intact.
The mummy is so well preserved that scientists were able to identify the human papillomavirus from a wart on his hand.
The body is kept in a specialized cryogenic chamber at a temperature between -2°C and -4°C and less than 45% humidity to ensure its continued preservation.
The original mummy is not on public display. A replica can be viewed at the Chilean National Museum of Natural History (MNHN) in Santiago. Museum hours are typically Tuesday to Saturday, 10:00 AM to 5:30 PM.
Admission
Admission to the museum is free for all visitors.
Accessibility
The museum is located within Quinta Normal Park and is generally accessible. The actual discovery site on Cerro El Plomo is a high-altitude mountain peak requiring a serious mountaineering expedition.
