Momia Juanita (Spanish for "Mummy Juanita"), also known as the "Inca" Ice Maiden and Lady of Ampato, is the well-preserved frozen body of an Inca girl who was killed as an offering to the Inca gods sometime between 1450 and 1480 when she was approximately 12–15 years old. She was discovered on Mount Ampato (part of the Andes cordillera) in southern Peru in 1995 by anthropologist Johan Reinhard and his Peruvian climbing partner, Miguel Zárate. "Juanita" has been on display in Catholic University of Santa María's Museum of Andean Sanctuaries (Museo Santuarios Andinos) in Arequipa, Peru, almost continuously since 1996, and was displayed on a tour of Japan in 1999.
The body caused a sensation in the scientific world due to its well-preserved condition. In 1995, Time magazine chose it as one of the world's top ten discoveries. Between May and June 1996, it was exhibited in the headquarters of the National Geographic Society in Washington, D.C., in a specially acclimatized conservation display unit. In its June 1996 issue, National Geographic included an article dedicated to the discovery of Juanita.
In September 1995, during an ascent of Mt. Ampato (20,700 ft, 6309 m), Reinhard and Zárate found in the crater a bundle that had fallen from an Inca site on the summit. To their astonishment, the bundle turned out to contain the frozen body of a young girl. They also found many items that had been left as offerings to the Inca gods strewn about the mountain slope down which the body had fallen. These included statues and food items. A couple of days later, the body and the items were transported to Arequipa, where the body was initially kept in a special refrigerator at Catholic University.
Two more ice mummies, a young girl and a boy, were discovered in an archaeological expedition led by Dr. Reinhard and Prof. Jose Antonio Chavez in October 1995, and they recovered another female mummy on Ampato in December 1997. Owing to melting caused by volcanic ash from the nearby erupting volcano of Sabancaya, most of the Inca burial site had collapsed down into a gully that led into the crater. Reinhard published a detailed account of the discovery in his 2006 book entitled, The Ice Maiden: Inca Mummies, Mountain Gods, and Sacred Sites in the Andes.