Tiwanaku ritual offerings at Khoa Reef on Lake Titicaca
Archaeological excavations at Khoa Reef on Lake Titicaca revealed thousands of offerings from the Tiwanaku civilization (500–1100 CE). Gold medallions, lapis lazuli figurines, puma-shaped incense burners, Spondylus shells brought from Ecuador, and sacrificed llama fetuses were found. Sonar and photogrammetry studies indicate that the offerings were deposited from boats, and the site was likely an emergent reef at the time.






