The 15-year-old mummy most famously known to the scientific community is "The Maiden" (La Doncella), one of the three Children of Llullaillaco discovered in 1999. Found near the 22,100-foot summit of Mount Llullaillaco in Argentina, she is an Incan girl who was sacrificed as part of a ritual known as capacocha approximately 500 years ago. Her preservation is so flawless that she appears to be merely sleeping; researchers even found traces of coca and alcohol in her system, used to sedate her before she was left in the freezing high-altitude tomb. Another notable young mummy is "Mummy Juanita" (The Lady of Ampato), found in Peru, who was also between 12 and 15 years old at the time of her sacrifice. These discoveries are invaluable to archaeology, providing direct evidence of Incan religious practices, diet, and physical health, while remaining some of the most hauntingly beautiful and well-preserved human remains ever unearthed.