Neolithic Salt Mine Reveals 305m of 7,300-Year-Old Tunnels in Peru

Archaeologists have mapped 305 meters of tunnels in an ancient salt mine beneath a mountain in Peru, dating back 7,300 years to the Neolithic period. The operation peaked around 1200 BC with daily production of 1.5 tons of salt, despite landslides. This discovery provides new insights into early mining technology and trade networks, though the exact location and excavation details remain unspecified.