Khewra Salt Mine is the world’s second largest and oldest salt mine. It is located in District Jhelum of province Punjab, Pakistan.
Khewra Salt Mine is located 945 feet (288 meters) above sea level. The mountains containing Khewra Salt Mine is part of mineral-rich mountain range called Salt Range. Total length of Salt Range is 300 kilometers (186 miles), extending from Beganwala near River Jhelum to Kalabagh near River Sindh. Width of Salt Range varies between 8 kilometers to 30 kilometers.
Its history dates back to its discovery by Alexander's troops in 320 BC, but it started trading in the Mughal era. After independence, the Pakistan Mineral Development Corporation took over the mine, which still remains the largest source of salt in the country, producing more than 350,000 tons per annum of about 99% pure halite. Estimates of the reserves of salt in the mine vary from 82 million tons to 600 million tons.
In raw form it contains negligible amounts of Calcium, Magnesium, Potassium, Sulphates and moisture, with Iron, Zinc, Copper, Manganese, Chromium and Lead as trace elements.
Khewra Salt Mine is a major tourist attraction, with around 250,000 visitors a year, earning it considerable revenue. Artistic carvings in the mine include a replica of Minar-e-Pakistan, a statue of Allama Iqbal, an accumulation of crystals that form the name of Muhammad in Urdu script, a model of the Great Wall of China and another of the Mall Road of Murree.