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'''Spelling Note''' * Gurumaishini is used in earlier records.* Gorumahisani is used from about 1910 and is also the modern spelling[[File:Kalimati-Gorumahisani Extension Railway.png|thumb|Gorumahisani Mine Railway]]The Gorumahisani Iron Mine is situated 37 miles(60 km ) south of the [[Jamshedpur Steel Works Railway|Jamshedpur Steel Works]]. Production from the Iron Mine commenced in 1911 <ref name =darvill>“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 OR54 page ....</ref> and by 1946 13 million tons of ore had been extracted <ref>[https://books.google.co.uk/books?id=24iKabhn4fcC&pg=PA183&lpg=PA183&dq=Badampahar+Iron+Mine&source=bl&ots=8_R_nxfUkB&sig=cOwWuSypT4eZX5M1mgpZ2o1xdzA&hl=en&sa=X&ved=0ahUKEwjKrPDZh9PTAhULVRQKHbjWAIo4FBDoAQgoMAE#v=onepage&q=Badampahar%20Iron%20Mine&f=false Google Books "Mineral wealth by John Coggin Brown, Abani Kumar Dey, Abani Kumar Dey; page 183]; Retrieved 3 May 2017</ref>.

The [[Bengal-Nagpur Railway]] broad records show that 2ft/610mm narrow gauge([[Rail_gauge#Broad_GaugeNarrow_Gauge|BG]]) ‘Kalimati-Gorumahisani Extension Railway’ from Kalimati (now called Tatanagar Juction, 5km south of [[JamshedpurNG]]) where it connected to locomotives were operational at the [[Jamshedpur Steel Works Railway]]. The line was 40 miles(64km)in length and opened in 1911Mine <ref>[https://archive.org/stream/BombayBarodaAndCentralIndiaRailwaySystem/Bombay_Baroda_And_Central_India_Railway_System#page/n11/mode/1up “Administration Report on Railways 1918” page 2 (pdf11)]; Retrieved 3 May 2017<name =darvill/ref>.

The records show that 2ft/610mm narrow Mine was linked to the Steelworks by the [[Bengal-Nagpur Railway]] broad gauge([[Rail_gauge#Narrow_GaugeBroad_Gauge|NGBG]]) locomotives [[Kalimati-Gorumahisani Extension Railway]]. The line was operational 40 miles(64km) in length and opened in 1911 and connected to the [[Jamshedpur Steel Works Railway]] at the mineKalimati (now called Tatanagar Junction), 5km south of [[Jamshedpur]] <ref>[https://archive.org/stream/BombayBarodaAndCentralIndiaRailwaySystem/Bombay_Baroda_And_Central_India_Railway_System#page/n11/mode/1up “Administration Report on Railways 1918” page 2 (pdf11)]; Retrieved 3 May 2017</ref>. [[Kalimati-Gorumahisani Extension Railway | ''See separate pages for more information'']] The mine closed on date unknown <ref name =darvill/>

The ‘[[Gurumaishini-Sini Railway Project]]’ was a proposal in 1906 for Messrs Tata and Sons to construct an Iron and Steelworks near [[Sini]] in Mourbhanj State to connect with the [[Bengal-Nagpur Railway]](BNR) network at [[Gorumahisani|Gorumahisani(Gurumaishini)]]. This proposal was not adopted, and the Steelworks was located at [[Jamshedpur ]]. [[Gurumaishini-Sini Railway Project|'' - See separate page for more information on this project]] '' The [[Jamshedpur Steel Works Railway|Jamshedpur Steel Works]] was established by 'Tata Iron and Steel Company' in 1907 at Sakchi, this was renamed [[Jamshedpur]] by 1918, in honour of Jamsetji Tata, the founder of the Tata dynasty.Preparations started in 1908, with the first machinery arriving in 1910 and first production in early 1912 <ref>“Industrial Railways and Locomotives of India and South Asia” compliled 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 JH29 pages 170-175</ref>. [[Jamshedpur Steel Works Railway|'' See separate page for more information]] ''

The '''Gorumahisani Iron Mine''' was the first iron mine developed by Tata; followed by the [[Badampahar Iron Mine Railway|Badampahar Iron Mine]] which commenced production in 1922 <ref name =darvill/>.[[Badampahar Iron Mine Railway|'' See separate page for more information]] ''