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The 'Sharigh Colliery', supplied coal to the [[North Western Railway]](NWR) and opened in 1894. The other collieries supplying NWR were the [[Dandot Light Railway|Dandot Colliery]] and , the [[Khost Colliery Tramway|Khost Colliery ]] <ref>[https://books.google.fr/books?id=q4SlCwAAQBAJ&pg=PA281#v=onepage&q&f=false Google Books'The Making of India: The Untold Story of British Enterprise' by Kartar Lalvani; page 281]; Retrieved 24 Nov 2017</ref> and the [[Bhaganwala Colliery Railway|Bhaganwala Colliery]] <ref name =PP14>“Industrial Railways and Locomotives of India and South Asia” compiled by Simon Darvill. Published by ‘The Industrial Railway Society’ 2013. ISBN 978 1 901556 82-7. Available at http://irsshop.co.uk/India. Reference: Entry PP14 page ....</ref>. The Colliery was situated in the 'Khost-Sharigh-Harnai Coal Belt' some 30-40 mile (48-64km) east of [[Quetta]], and at an altitude of about 4,000 feet(1,200 metres). These coal mines were approachable from the Sibi-Zardalu section of the NWR <ref>[https://books.google.fr/books?id=24iKabhn4fcC&pg=PA63#v=onepage&q&f=false Google Books 'Mineral wealth' by John Coggin Brown, Abani Kumar Dey, Abani Kumar Dey; page 63]; Retrieved 24 Nov 2017</ref>.