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'Joint Bokaro Coalfield' info with ref added
In 1917, L.S.S.O’Malley described the coalfields in the upper reaches of the [[Damodar River]] as follows: "Near the western boundary of Jharia field is that of Bokaro, covering 220 sq.miles(570sq.km}, with an estimated content of 1,500 million tons; close by… is the Ramgarh Field, 40 sq.miles, in which, however, coal is believed to be of inferior quality. A still larger field in the same district is that called Karanpura, which extends over 544 sq.miles(1410sq.km}a nd has an estimated capacity of 9,000 million tons."<ref>‘Bengal, Bihar and Orissa, Sikkim’ by L.S.S. O’Malley, p.87, Cambridge University Press, 1917 (paper back 2011) {{ISBN|978-1-107-60064-5</ref> <ref name = wikiwest>[https://en.wikipedia.org/wiki/West_Bokaro_Coalfield Wikipedia ‘West Bokaro Coalfield’]; Retrieved 11 May 2019</ref> .
The '''East Indian and Bengal Nagpur Railways Joint Bokaro Colliery''' became the description. The 1936-37 Report gave an output of 611,500 tons for 1935-36, rising to 770,000 tons in 1936-37 with despatches increased to the maximum to meet short supplies of market <ref>[http://hdl.handle.net/10973/18160 “Report by the Railway Board on Indian Railways for 1936-37. Vol. I; Railway Department, Government of India” Paragraph 61(iv), page 63, pdf 83]; Retrieved 22 Jul 2020</ref>
==The Coalfields==
The ‘Bokaro Coalfield’ is 40 miles(65km) from east to west and 6½ to 10 miles(10 to 16km) from north to south. ‘Bokaro West’ and ‘Bokaro East’ are two subdivisions of the field separated almost in the middle by Lugu Hill, height 3150 feet(960mtr) <ref>[https://www.insa.nic.in/writereaddata/UpLoadedFiles/PINSA/Vol30A_1964_6_Art11.pdf “A Reflectance Study of Certain Coals from the Bokaro Coalfield, Bihar” by S.M.Casshyap, publisher = University of Aligarh]; Retrieved 11 May 2019</ref> .
The ‘Ramgarh Coalfield’ covers an area of 38 sq.miles(98sq.km) and has total coal reserves of 1,059.20 million tonnes.<ref> “Critical Evaluation of Geo-Environmental Scenario of Damodar River Basin, India” by Prasoon Kumar Singh, Gurdeep Singh and Brajendra Kumar Tiwary</ref> <ref>[https://en.wikipedia.org/wiki/Ramgarh_Coalfield Wikipedia ‘Ramgarh Coalfield’]; Retrieved 11 May 20196</ref> .
* [[Bokharo Colliery Railway|'''Bokharo Colliery Railway''']] was connected to the [[East Indian Railway]](EIR) network in 1916 with the construction of the ‘Jamuniatand Link Line EIR’; this was a ‘EIR/BNR joint line’ with a length of 2 miles(3.2km) from the EIR line at Khanoodih to meet the ‘Bokharo Colliery Railway’ Railway<ref>[https://archive.org/stream/BombayBarodaAndCentralIndiaRailwaySystem/Bombay_Baroda_And_Central_India_Railway_System#page/n64/mode/1up “Administration Report on Railways 1918” page 55 (pdf64)]; Retrieved 11 May 2019</ref> .
*'''Bokaro Ramgarh Extension Line''' This was the description used in the 1916 Administration Report for Railways and became the 1927 westward extension of the BNR line to Barkakana as follows:-
* [[Helsa-Barkakana Chandil Railway| '''Helsa-Barkakana Chandil Railway ''' ''(see separate page)'']] , later described as '''Chandil-Barkakana BNR Section''', 72 miles(116km), opened 1927 <ref name = wikiwest/>, connecting the EIR mainline and BNR network providing an alternative outlet to the south for coal from ‘West Bokharo’ and the [[Karanpura Coalfields Railways| ‘South Karanpura Coalfields’''(see separate page)'' ]].
* [[Central Indian Coalfields Railway|''' Central India Coalfields Railway''' ''(see separate page) '']] also opened in 1927 the ‘Gomoh-Barkakana Railway’. It was extended to Daltonganj in 1929. Later, these lines were amalgamated with East Indian Railway <ref>[http://irse.bravehost.com/IRHTML.htm “Indian Railway History Timeline”]; Retrieved 11 May 2019</ref> <ref name = wikiwest/> .
==Further Information==
See page '''[[Jharia Coalfield Railways]] '''
<br>and page '''[[Karanpura Coalfields Railways]]'''
<br>and page '''[[East Indian Railway - Lines owned and worked]]'''
