KHEWARA SALT MINE:One of the larget salt mine in pakistan

Khewra Salt Mine (or Mayo Salt Mine) is located in Khewra, north of Pind Dadan Khan, an administrative subdivision ofJhelum District, Punjab Region, Pakistan, which rises from the Indo-Gangetic Plain. 
It is Pakistan's largest and oldest salt mine and the world's second largest. It is a major tourist attraction, drawing up to 250,000 visitors a year.
Estimates of the total reserves of salt in the mines range from 82 million tons to 600 million tons.

History 

Entrance of mine

A small mosque inside the mine made up of salt 

Beautiful lighted walls inside mine

 In raw form it contains negligible amounts of Calcium, Magnesium, Potassium, Sulfates and moisture, with Iron, Zinc, Copper, Manganese, Chromium and Lead as trace elements. Salt from Khewra, also known as Himalayan salt, is red, pink, off-white or transparent.