In this episode of Tell Me Why, we explain how the Khewra Salt Mine has been mined for more than 2,000 years and is still far from empty.
Discovered when Alexander the Great’s horses began licking salty rocks, this mine has survived empires, colonisation, and modern industry.
Formed over 500 million years ago from an ancient sea, this underground salt range exists on a scale beyond human history. Only a small fraction of its reserves has been extracted so far.