The sea salt was locked into the rocks .
The sea salt was filters out through the Qoripujio spring , which is then routed to roughly 5,000 evap ponds staggered down the valley in terraces .
The sea salt was locked into the rocks and filters out through the Qoripujio spring , which is then routed to roughly 5,000 evap ponds staggered down the valley in terraces .