The hallucinogenic San Pedro cactus has been used since ancient times, and in Peru the tradition has been unbroken for over 3,000 years. The earliest depiction of the cactus is a carving showing a mythological being holding a San Pedro, and dates from about 1300 bc. It comes from the Chavín culture (c.1400-400 bce) and was found in a temple at Chavín de Huantar, in the northern highlands of Peru. Later, the Mochica culture, (c.500 ce) used the cactus in their iconography. Even in present day mythology, it is told that God hid the keys to heaven in a secret place and San Pedro used the magical powers of a cactus to discover this place; later the cactus was named after him.