Ica, Peru (Ica Stones)
Photo: Brattarb, CC BY-SA 3.0, via Wikimedia Commons
The Ica stones are a collection of thousands of andesite rocks, ranging from small pebbles to boulders weighing several hundred pounds, allegedly discovered in the Ica desert region of Peru. These dark volcanic stones feature intricate engravings depicting a wide array of subjects, from dinosaurs and advanced surgical procedures to astronomical maps and technological devices. The collection gained international attention through local physician Dr. Javier Cabrera, who amassed over 11,000 stones at his museum in Ica. The stones vary considerably in size, with the largest specimens measuring several feet across and displaying elaborate multi-scene narratives. Today, visitors can view portions of the collection at the Museo Cabrera in Ica, though the site's authenticity remains one of archaeology's most contentious debates. Ancient astronaut theorists have pointed to the detailed depictions of surgical procedures—including brain surgery, cesarean sections, and organ transplants—as possible evidence that extraterrestrial visitors shared advanced medical knowledge with pre-Columbian peoples. However, mainstream archaeologists note that the stones lack verified provenance from controlled excavations, and many experts suspect they were created in the modern era for the tourist market, a theory supported by the fact that no pre-Columbian sources mention such artifacts. The debate ultimately hinges on whether the stones are authentic pre-Columbian artifacts or later creations, a question that continues to challenge researchers.
Timeline
Local farmer Basilio Uschuya begins selling carved stones to tourists in the Ica region
Dr. Javier Cabrera receives his first Ica stone as a gift and begins collecting
International media attention brings the stones to worldwide notice
BBC documentary crew investigates the stones and their alleged creators
What the Show Claims
- ›The stones contain advanced medical knowledge including brain surgeries, cesarean sections, and heart transplants that surpass pre-Columbian capabilitiesS06E06
- ›Depictions of dinosaurs alongside humans suggest the stones record contact with extraterrestrial beings who witnessed Earth's ancient historyS06E06
- ›The technological devices shown on the stones represent alien technology given to ancient peoplesS06E06
Theorist Takes
“It seems impossible that ancient people were doing anything like this, and therefore, it would seem to be that this is knowledge and medical knowledge that's coming from some advanced civilization of extraterrestrials.”
From the Transcripts
“80 miles northwest of the famous Nazca Lines, lies the small city of Ica, Peru. In 1966, a local physician named Javier Cabrera acquired several andesite stones unearthed in the desert here.”
What Archaeology Says
No controlled archaeological excavation has ever documented the discovery of Ica stones in their original context. The stones first appeared in the tourist market during the 1960s, sold by local farmers who claimed to have found them in caves and riverbeds around Ica. When pressed by authorities about the stones' origins, the primary supplier, Basilio Uschuya, admitted to carving them himself using modern tools, though he later recanted this confession.
Dr. Javier Cabrera, the stones' most prominent advocate, maintained that the carvings represented an ancient library left by a pre-Inca civilization with advanced knowledge. However, geological analysis has revealed several problematic aspects of the stones. The patina, or surface oxidation that should accumulate over centuries, appears inconsistent with great age. Additionally, many engravings show no signs of natural weathering that would be expected from artifacts thousands of years old.
Mainstream archaeologists and geologists have found no credible evidence supporting the stones' antiquity. The absence of any stones discovered through systematic excavation, combined with the admission of at least one carver, has led most scholars to conclude the stones are modern creations. The sophisticated anatomical knowledge displayed could easily be explained by access to modern medical textbooks rather than ancient extraterrestrial contact.
What remains genuinely intriguing is the sheer scale of the collection and the artistic skill required to produce thousands of detailed carvings. Whether ancient or modern, the stones represent a significant investment of time and artistic talent, raising questions about the motivation behind their creation and the persistence of claims about their authenticity despite substantial evidence to the contrary.
Mysteries & Fun Facts
Dr. Javier Cabrera's collection eventually grew to contain over 11,000 individual stones
The stones depict a wide range of subjects including maps of unknown continents and people observing celestial objects through telescopes
Some stones appear to show surgical procedures being performed on patients who remain conscious and alert during the operations
The largest stones in the collection weigh several hundred pounds and required significant effort to transport and display
Planning a Visit
The primary Ica stones collection can be viewed at the Museo Cabrera in Ica, Peru, though visitors should check current hours and availability before traveling. The museum houses thousands of stones with detailed explanations of Dr. Cabrera's theories about their significance. Some stones are also displayed at other locations around Ica, and local vendors may offer carved stones for sale to tourists.
Ica, Peru (the stones are located within the city itself)
Ica enjoys a desert climate with minimal rainfall year-round, making it generally accessible throughout all seasons. The cooler months from May to September offer more comfortable temperatures for exploring the museum and surrounding area.
Related Sites
Chavín de Huántar
Another pre-Columbian Peruvian site where ancient aliens theorists claim evidence of advanced knowledge and technology
Sacsayhuaman
Features precision stone cutting techniques that theorists argue demonstrate advanced ancient technology similar to the sophisticated knowledge allegedly shown on the Ica stones