An elderly Peruvian woman hikes up the windy slope of an Andean mountain, collecting salt from the wells around her. Two large sacks of the mineral can be seen beside her, which she will walk back down the mountain to sell, just as her ancestors have done for centuries.

She can be seen scaling up the 3,380 metre Qaqawiñay mountain in Peru, where the salt is in such great supply that it spills down the sides of the wells, looking almost like frost. The area, known locally as...
more »