Khewra Mine Visit and its History Some new Informations

Khewra Mine Visit and its History Complete documentary



This video contains some awful information about khewra Salt Mines



Khewra Salt Mine - Crystal Deposits on the mine walls.jpg

Khewra Salt Mine tunnel (Crystal Valley)

Location

Khewra Salt Mine is located in Punjab, Pakistan Khewra Salt MineKhewra Salt Mine

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Coordinates 32°38′52.58″N 73°00′30.22″ECoordinates: 32°38′52.58″N 73°00′30.22″E



Products Rock salt, Brine

History

Opened 1872

Active 140 years



The Khewra Salt Mine (or Mayo Salt Mine) is located in Khewra, north of Pind Dadan Khan, an administrative subdivision of Jhelum District, Punjab Region, Pakistan, which rises from the Indo-Gangetic Plain. It is Pakistan's largest, the world's 2nd largest and the oldest salt mine in the world. It is a major tourist attraction, drawing up to 250,000 visitors a year. Its history dates back to its discovery by Alexander's troops in 320 BC, but it started trading in the Mughal era. The main tunnel at ground level was developed by Dr. H. Warth, a mining engineer, in 1872 during British rule. 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



History



The Khewra Salt Mine is also known as Mayo Salt Mine, in honour of Lord Mayo, who visited it as Viceroy of India. The mine is a part of a salt range that originated about 800 million years ago, when evaporation of a shallow sea followed by geological movement formed a salt range that stretched for about 300 kilometers (185 miles).



The salt reserves at Khewra were discovered when Alexander the Great crossed the Jhelum and Mianwali region during his Indian campaign. The mine was discovered, however, not by Alexander, nor by his allies, but by his army's horses, when they were found licking the stones.Ailing horses of his army also recovered after licking the rock salt stones. During the Mughal era the salt was traded in various markets, as far away as Central Asia. On the downfall of the Mughal empire, the mine was taken over by Sikhs. Hari Singh Nalwa, the Sikh Commander-in-Chief, shared the management of the Salt Range with Gulab Singh, the Raja of Jammu. The former controlled the Warcha mine, while the latter held Khewra. The salt quarried during Sikh rule was both eaten and used as a source of revenue.[citation needed]



In 1872, some time after they had taken over the Sikhs' territory, the British developed the mine further. They found the mining to have been inefficient, with irregular and narrow tunnels and entrances that made the movement of labourers difficult and dangerous. The supply of water inside the mine was poor, and there was no storage facility for the mined salt. The only road to the mine was over difficult, rocky terrain. To address these problems the government levelled the road, built warehouses, provided a water supply, improved the entrances and tunnels, and introduced a better mechanism for excavation of salt. Penalties were introduced to control salt smuggling.



While working with Geological Survey of India in the 1930s and 1940s, Birbal Sahni found evidence of angiosperms, gymnosperms and insects inside the mine which he regarded as originating from the Eocene period, but which Michael Cremo alleged originated from the Cambrian period. However, Cremo's opinion is not supported by contemporary geologists.