Gran Saposoa is the name given to a series of ruins in the Andean cloud forests of the Amazonas region of Peru by American explorer Gene Savoy.
Savoy hypothesized that this site is the Pre-Columbian city of Cajamarquilla, built by the Chachapoyas culture, but Chachapoyas archaeologists observed that "Cajamarquilla" is clearly identifiable in historical documents as the renamed modern highland town of Bolívar, Peru.
After Savoy announced his 1999 "discovery," and the sizes and populations claimed for Gran Saposoa were exposed as grossly exaggerated by professional archaeologists specializing in Chachapoyas archaeology 4.
In September 2005, Gene’s son Sean Savoy released a statement to the Associated Press indicating that upon a recent return to the archaeological site at Gran Saposoa, the team found the site had been looted.
Protection of archaeological ruins remains an issue in Peru, since looters and black market sellers are extremely well financed.