Engineer's Line References (ELRs)

A (hopefully) comprehensive listing

Codes beginning M

Last update 26 May 2021

Additional information is always gratefully received, whether entirely new records (particularly historical records) or information to fill in gaps or correct errors, via the contact link under the Miscellaneous entry in the navigation bar above. Thank you.

Please select a starting letter from the links below:

ELR Line name Mileages Datum Notes
MAB Mablethorpe Branch 128.07 - 149.43 Kings Cross
MAC Manvers Main Colliery Branch 0.00 - 0.36 Wath Junction
MAC Manchester and Cleethorpes Line see separate portions
MAC1 Dunford Bridge (LM/ER boundary) to Penistone 22.20 - 28.37 Manchester London Road
MAC2 Penistone to Deepcar 29.13 - 33.20 Manchester London Road via Woodhead
MAC3 Deepcar to Cleethorpes 33.20 - 112.40 Manchester London Road via Woodhead
MAD Malton to Driffield Line 0.00 - 19.43 Malton East Junction
MAE Maesycwmmer Branch/Fleur de Lis Branch 10.11 - 10.69 Taff Vale Extension Junction
MAH Manningtree and Harwich Line 59.46 - 71.00 Liverpool Street
MAI Maindee East Loop 41.34 - 41.64 Rotherwas Junction
MAJ Manchester and Allerton Junction Line 6.11 - 34.05 Liverpool Central
MAK Monkland and Kirkintilloch Branch ?? - ?? Line starts at Kirkintilloch Basin
MAL Malmesbury Branch see separate portions
MAL1 Dauntsey Junction to connection from Little Somerford Station 87.63 - 91.18 Paddington via Swindon and Dauntsey
MAL2 Little Somerford to Malmesbury 89.66 - 93.35 Paddington via Swindon and Brinkworth 90.29 - 93.35 formerly 91.18 - 94.24 from Paddington via Swindon and Dauntsey. Line remiled 1933
MAM Maltby Colliery Branch see separate portions
MAM1 Maltby Colliery South Junction to Maltby Colliery 8.67 - 9.30 Brancliffe East Junction via Maltby Colliery Junction (reverse) Later definition
MAM1 Maltby Colliery Branch Junction to mileage change 9.26 - 9.62 Brancliffe East Junction Former definition
MAM2 Maltby Colliery South Junction to Maltby Colliery Bunker 0.00 - 0.43 Maltby Colliery Junction
MAN Mangotsfield South Loop Now MAP
MAN Manton Colliery Branch (Worksop) see separate portions
MAN1 Manton Colliery 0.00 - 0.15 Junction with MAN2
MAN2 Manton Colliery Branch 58.54 - 59.01 Manchester London Road via Woodhead
MAP Mangotsfield South Loop 0.00 - 0.33 Mangotsfield Station Junction Formerly MAN
MAR Marefield to Leicester Line 0.00 - 10.14 Marefield Junction South
MAS Manchester and Sheffield Line 153.73 - 174.01 St Pancras via Leicester and Toton
MAT Mold and Tryddyn Branch see separate portions
MAT1 Mold to Llanfynydd 0.00 - 5.37 Mold & Tryddyn Junction
MAT2 Wrexham & Minera Extension Line 0.00 - 2.67 Brymbo Junction
MAU Mauldslie Branch 0.00 - 1.22 Mauldlie Branch Junction Off Law Junction to Shawfield Colliery Branch
MAV Menstrie to Alve Branch 1.73 - 3.45 Cambus Or from 2.12
MAX Maxwelltown Branch 0.24 - 3.06 Dumfries
MAY Mayfield Branch 0.00 - 1.37 Mayfield Branch Junction It appears that this should be the Manchester Mayfield goods station branch
MBA Marsh Barton Estate Branch 0.00 - 0.22/ 0.24 - 0.46 Marsh Barton Junction/Exeter Railway Junction via Marsh Barton Junction (reverse and reverse count) Formerly MBE
MBB Musselburgh Branch 4.54 - 6.00 Edinburgh Waverley
MBD Melton to Bottesford Branch 20.28 - 34.46 Welham Junction
MBE Marsh Barton Estate Branch Now MBA
MBE Moor Row and Birksbridge Line 2.14 - 3.49 Mire House Junction
MBH Masham Branch 0.00 - 7.45 Melmerby Junction
MBJ Moorbridge Junction to Bulwell North Junction (Bulwell Connecting Line) ?? - ??
MBL Mangotsfield to Bath Line 124.46 - 134.60 Derby
MBN Masborough North Curve 163.07 - 163.70 St Pancras unable to identify at present
MBO Marlborough Branch 70.12 - 75.58 Paddington
MBT Melton and Bottesford Line 20.33 - 21.20 Welham Junction
MBW Middlesbrough and Whitby Line see separate portions
MBW1 Guisborough Junction to Battersby Junction 0.00 - 10.49 Guisborough Junction
MBW2 Battersby Junction to Grosmont Junction 11.61 - 29.66 Picton
MBW3 Grosmont Junction to Whitby 24.44 - 30.62 Rillington Junction
MBY Moss Bay Branch see separate portions
MBY1 Moss Bay Branch 0.00 - 1.43 Harrington Junction Moss Bay branch ( South)
MBY2 Derwent Works Branch 0.00 - 0.48 Branch junction Moss Bay branch (North)
MCB Markham Colliery Branch 6.77 - 7.02 Pleasley Colliery West Junction via Markham Colliery Junction (reverse direction and count)
MCC Mansfield Colliery South 0.00 - 1.00 Datum unknown: presumably branch junction
MCG Maryport and Carlisle Goods Lines 0.00 - 0.41 Currock Junction
MCH Macclesfield and Cheadle Hulme Line 0.00 - 9.37 Cheadle Hulme Junction
MCJ Marylebone to Claydon L&NE Junction see separate portions
MCJ1 Marylebone and Harrow Line 197.05 - 205.78 Manchester London Road
MCJ2 Metropolitan & GC Joint Line (Amersham to Verney Junction) 9.13 - 50.57 Baker Street 9.13 - 25.21 LUL property
MCJ3 Great Central Main Line (Annesley to Quainton Road via Calvert Junction) 69.59 - 161.50 Manchester London Road
MCJ4 Claydon Loop (Calvert Junction to Claydon L&NE Junction) 0.00 - 0.41 Calvert Junction
MCJ5 unknown Manchester London Road
MCL Moorgate to Carlton Junction Line (Midland City Line) 0.00 - 4.06 Moorgate
MCO Manners Colliery Branch 0.00 - 0.59 Manners Colliery Branch Junction
MCS Margam Cripple and Holding Sidings 198.58 - 199.32 Paddington via Stroud
MCY Mosside Colliery Branch 0.00 - 0.61 Mosside Colliery Siding, Bathgate Upper Remainder of branch RCH
MDB Maryport Dock Branch 0.00 - 0.64 Docks Branch Junction
MDC Middlewood Curve 0.00 - 0.32 Middlewood High Level Junction
MDE Mossend East Curve 0.00 - 0.31 Mossend South Junction
MDH Mold to Denbigh Line see separate portions
MDH1 Pen-Y-Ffordd Connecting Line to Chester to Mold Branch 0.00 - 0.31 Pen-Y-Ffordd Junction Formerly PSS1
MDH2 Mold to Denbigh 0.00 - 14.74 Mold
MDI Moor Lane Junction to Marsh (Ditton Brook Iron Works) Branch 0.00 - 1.42 Moor Lane Junction
MDL Manchester Diggle and Leeds Line see separate portions
MDL1 Thornhill LNW Junction to Holbeck East Junction 32.17 - 42.03 Manchester Victoria via Huddersfield
MDL2 Holbeck East Junction to Whitehall West Junction 42.03 - 42.25 Manchester Victoria via Huddersfield Note that the 1967 rebuilding at Leeds makes it difficult to give exact definitions for this line
MDN Mossend North Curve -0.06 - 0.40 Mossend North Junction
MDNX Mossend North Junction 0.00 - 0.06 Mossend North Junction Not in GEOGIS but present in a structure maintenance system
MDT Maiden Lane Depot Line 4.33 - 4.66 Broad Street
MDV Murton And Durham Elvet Line 0.00 - 8.13 Murton Junction
MDW Mossend West Curve 91.08 - 91.50 Carlisle
MDY Maerdy Branch/Rhondda Fach Branch 16.13 - 22.62 Cardiff Bute Road
MDZ Marsh Depot Goods Branch/St Philips Marsh Goods Branch 117.58 - 118.12 Paddington via Box
MEB Moorgate Branch see separate portions
MEB1 Open portion 0.00 - 3.37 Moorgate
MEB2 Closed portion ≈2.60 - 3.34 Moorgate
MED Mile End (Devonshire St) Sidings 1.59 - 2.02 Liverpool Street
MEE Medbourne Branch 0.00 - 3.25 Drayton Junction
MEG Merthyr Goods Branch Now MRG
MEG Marsh East Junction: Grimsby Line Curve 0.00 - 0.14 Marsh East Junction
MEL Meon Valley Line 50.22 - 72.40 Waterloo via Wimbledon, Guildford (reverse) and Tongham
MEN Muirhouse South Junction to Strathbungo Junction (Glasgow Central) see separate portions
MEN1 Muirhouse Central Junction to Eglinton Street Junction 0.19 - 0.70 Muirhouse South Junction
MEN2 Muirhouse South Junction to Muirhouse Central Junction 0.00 - 0.19 Muirhouse South Junction
MEP Methley and Pontefract Line 59.03 - 61.13 Manchester Victoria via Rochdale, Wakefield Kirkgate and Pontefract Monkhill (reverse)
MER Merthyr Branch 0.00 - 6.22 Gelli Tarw Junction 5.70 - 6.22 now 24.19 - 24.51 in CAM
MEW Methley Junction to Whitwood Junction Curve (Castleford) see separate portions
MEW1 Methley Junction to Methley Junction for Whitwood 61.08 - 61.12 Manchester Victoria via Rochdale, Wakefield Kirkgate and Pontefract Monkhill (reverse)
MEW2 Methley Junction for Whitwood to Whitwood Junction 0.00 - 1.12 Whitwood Junction
MEX Merthyr Extension Line 18.16 - 19.33 Abergavenny Junction
MEY Mellis to Eye Line 0.00 - 2.73/ 91.33 - 94.26 Liverpool Street
MEZ Merthyr Low Level Loop 0.00 - 0.19 Ynysfach Loop Junction
MFB Maud to Fraserburgh Branch 31.03 - 47.23 Aberdeen
MFD Mansfield Line see separate portions
MFD1 Kirkby South Junction to Mansfield Colliery end on junction with CEM 0.00 - 6.32 Kirkby South Junction
MFD2 Mansfield South Junction to Rolleston Junction 139.68 - 154.47 St Pancras via Corby and Newstead
MFD3 Mansfield Colliery Branch 142.22 - 144.06 St Pancras via Corby and Newstead
MFN Milfraen Branch 2.07 - 2.52 Brynmawr Waenavon Station to Milfraen Colliery
MGB Monkseaton Goods Branch ?? - ??
MGE Milngavie Branch 6.19 - 9.35 Glasgow Queen Street High Level via Maryhill
MGS Meikleriggs Branch 0.00 - 0.60 Meikleriggs Branch Junction South of Paisley, Chain Road, Caledonian Railway
MGW Milford Curve 6.27 - 7.65 Selby South Junction
MGY Middlesbrough Goods Yard 0.00 - ≈1.34 Newport East Junction
MGZ Gilbertsons Branch 7.51 - 7.66 Swansea St Thomas Station
MHB Hadfields Branch 0.00 - 0.28 Hadfield's Branch Junction On Sheffield District Railway between West Tinsley and Brightside Junction
MHE Millerhill Junction to Millerhill Yard Junction Line 0.50 - 0.71
MHH Morecambe and Heysham Branch 0.00 - 4.25 Morecambe Junction
MHL Millerhill Branch see separate portions
MHL1 Wanton Walls to Monktonhall Junction 5.60 - 6.12 Haymarket Central Junction Millerhill West Junction to Millerhill South Junction
MHL2 Millerhill South Junction to Wanton Walls 0.01 - 1.40 Millerhill South Junction
MHL3 Millerhill East Junction to Millerhill Yard 0.00 - 0.20 Millerhill East Junction
MHL4 Millerhill EMU depot 0.00 - 0.16 Newcraighall East Junction
MHS Mirehouse and Sellafield Line 0.00 - 9.44 Mire House Junction
MHY Millerhill Yard Lines 6.30 - 7.08 Haymarket Central Junction
MIA Manchester International Airport Rail Link Line 0.00 - 1.51 Manchester Airport Station
MIA2 unknown 0.00 - 3.22 unknown Not in GEOGIS but present in a structure maintenance system
MIB Montrose to Inverbervie Branch 30.69 - 43.10 Dundee Tay Bridge
MID Middleton Branch 5.19 - 6.21 Manchester Victoria
MIH Mirfield to Huddersfield Line 190.21 - 194.58/ 0.00 - 4.37 St Pancras/Mirfield Junction
MII Mistley Incline 0.00 - 0.60 Mistley Junction
MIK Micklehurst Line 8.04 - 14.69 Manchester Victoria
MIL Milford Haven Branch/Old Milford Branch 280.70 - 284.71 Paddington via Stroud
MIN Minehead Branch 164.60 - 187.76 Paddington via Box
MIR Mersey Loop Line see separate portions
MIR1 Mann Island Junction to Mann Island Junction (Liverpool Loop Line) 0.00 - 2.21 Mann Island Junction via Moorfields
MIR2 Mann Island Junction to Rock Ferry Station 0.69 - 3.46 Liverpool Central Low Level
MIS Millbrook to Southampton Western Docks Branch 79.78 - 81.59 Waterloo
MIS Minsterley Branch ?? - 5.50 - ?? Shropshire
MIT Middleton Towers Branch (Kings Lynn) 0.22 - 3.44 Kings Lynn Junction Line runs to Dereham as MTD
MJB Bude Branch 199.78 - 228.25 Waterloo
MJD Marsh Junction Depot (Down Side) 0.21 - 0.44 North Somerset Junction
MJI Madeley Junction to Ironbridge Line see separate portions
MJI1 Madeley Junction to Lightmoor Junction 156.19 - 160.16 Paddington via Oxford and Birmingham Snow Hill
MJI2 Ketley Junction to Ironbridge via Lightmoor Junction 160.01 - 166.63 Paddington via Didcot, Charlbury and Buildwas East Junction (reverse)
MJR Morlais Junction to Rhydycar Junction 18.75 - 23.56 Brecon
MJS Melbourne Junction and Sinfin Branch see separate portions
MJS1 Melbourne Junction to Chellaston East Junction 127.27 - 131.15 St Pancras via Trent Junction, Sheet Stores Junction, Chellaston East Junction and Melbourne Junction
MJS2 Ashby-de-la-Zouch to Chellaston East Junction 0.00 - 10.72 Ashby-de-la-Zouch
MJT Mansfield Junction to Trowell Junction Line see separate portions
MJT1 Mansfield Junction to Radford Junction 124.22 - 125.56 St Pancras via Corby
MJT2 Radford Junction to Trowell Junction 125.56 - 130.56 St Pancras via Corby
MJU Marsh Junction Depot (Up Side) 0.17 - 0.64 North Somerset Junction
MJW Mitcham Junction to Wimbledon Line 0.00 - 2.78 Wimbledon
MKB Monk Bretton Branch see separate portions
MKB1 Cudworth North Junction to Cudworth West Junction 0.00 - 0.34 Cudworth West Junction
MKB2 Cudworth West Junction to Monk Bretton 175.72 - 176.38 St Pancras via Leicester, Toton and Barrow Hill
MKK Muirkirk Branch 47.56 - 58.11 Bridge Street Junction via Dalry
MKT Market Drayton Branch 161.67 - 188.66 Paddington via Didcot
MLA Maryhill Park Junction to Anniesland Line 4.62 - 5.51 High Street via Hyndland original measure
MLA Maryhill Park Junction to Anniesland Line 0.00 - 0.73 Maryhill Park Junction current measure
MLD Mouldron Branch 0.00 - ?? branch junction
MLE Millerhill East Curve 0.09 - 0.28 Millerhill Yard ??
MLF Manuel Fork 0.00 - 0.58 Almond Junction
MLG Mallaig Line see separate portions
MLG1 Fort William Junction to Banavie Junction 0.00 - 1.27 Fort William Junction
MLG2 Banavie Junction to Mallaig 0.00 - 39.39 Banavie Junction
MLK Mawcarse to Ladybank (Fife and Kinross) Branch 0.00 - 15.00 Kinross
MLL Moss Lane Junction to Lostock Hall Engine Shed Junction (Walton to Preston) Line 24.63 - 25.36 Liverpool Exchange
MLN Hackney Yard 213.24 - 213.70 Paddington via Box
MLN Main Line (Paddington to Penzance via Bath) see separate portions
MLN1 Paddington to North Road Junction 0.00 - 246.08 Paddington via Box
MLN2 Cornwall Loop Junction to St Germans 247.28 - 256.38 Paddington via Box and Plymouth Millbay (reverse)
MLN3 St Germans to mileage change point east of Chacewater 256.40 - 305.65 Paddington via Box and Plymouth Millbay (reverse)
MLN4 Mileage change point east of Chacewater to Penzance 305.67 - 326.50 Paddington via Box and Plymouth Millbay (reverse)
MLN5 Plymouth North Road to Millbay station 246.08 - 246.64 Paddington 246.64 (Millbay station) - 247.22 doubled
MLN6 Bristol Temple Meads Old Station 118.16 - 118.39 Paddington
MLN7 Plymouth North Road west side of triangle 247.22 - 247.42 Paddington via Box and Plymouth Millbay (reverse)
MLP Middlemuir Loop 0.00 - 0.33 Woodlay junction Woodlay Junction to Middlemuir Junction, Kirkintilloch
MLS Margam Loco and Sorting Sidings 198.34 - 199.30 Paddington via Stroud
MLT Moat Lane Junction to Talyllyn 52.18 - 108.27 Whitchurch Cambrian Junction via Oswestry
MLY Millerhill Yard 0.20 - 0.52 ?? Millerhill East Junction ?? Possibly 5.21 - 5.53 from Edinburgh Waverley
MMB Mynydd Mawr Branch/Llanelly & Mynydd Mawr Line 0.00 - 12.35/ 0.23 - 12.01 Mynydd Mawr Stages/Llanelly Low Level Junction
MMC Markham Main Colliery Branch 0.00 - 0.61 Markham Colliery Junction
MMH Middlesbrough Marsh Line see separate portions
MMH1 Middlesbrough Marsh Branch 0.00 - 0.56 Marsh Branch Junction
MMH2 Middlesbrough Marsh Branch And Old Town Branch Loop 0.41 - 1.16 Marsh Branch Junction
MML Mynydd Mawr Loop 0.00 - 0.23 Llanelly Low Level Junction
MMP March Motive Power Depot 86.19 - 86.45 Liverpool Street via Clapton and Ely
MMR March to Magdalen Road Line ?? - ?? Duplicates WIG?
MMW Moira West Junction to Shackerstone Now AMS
MMZ Maes-y-Marchog Branch 0.00 - 1.59 Onllywn Junction
MNB Methven Branch 4.61 - 6.03 Almond Valley Junction
MNC Monckton Main Colliery Branch 0.00 - 1.03 Cudworth (Yard) North Junction A new line opened from this box at 51.29 on Hull & Barnsley Line on 1 June 1958
MNG Morningside Branch 0.00 - 13.44 Polkemmet Junction
MNL Mid Notts Joint Line 0.00 - 7.72 Farnsfield Junction
MOA Mountain Ash deviation 0.00 - 0.38 south end of deviation
MOB Moretonhampstead Branch 0.14 - 12.34 Newton Abbot
MOD MOD Chilmark Branch 91.72 - 93.41 ± private sidings Waterloo
MOF Muir of Ord to Fortrose (Black Isle) Branch 0.12 - 13.45 Muir of Ord
MOL Motherwell Old Line ?? - ?? Location uncertain
MON Monkland Branch ?? - ?? See also MLP, CME, MAK
MOO Moorfields Branch 0.00 - 0.37 Moorfields Junction
MOR Morriston Branch 0.00 - 3.29 Haford Junction Formerly 0.00 - 3.21; junction moved and line remiled 1964
MOS Mossend Branch ?? - ??
MOT Moffat Branch (Beatock to Moffat) ?? - ??
MOU Mountain Branch/Crosshands Branch 0.00 - 4.03 Mountain Branch Junction
MOW Mowbray Branch 0.00 - 0.58 Eskett Junction
MPC Motspur Park and Chessington Branch 10.11 - 14.32 Waterloo
MPM Moffat Paper Mill Branch 0.00 - 1.23 Springbank Quarry Junction, Clarkston (Lanark)
MPR Miles Platting and Rochdale Line see separate portions
MPR1 Miles Platting to Thorpes Bridge Junction 1.30 - 2.17 Manchester Victoria
MPR2 Thorpes Bridge Junction to Oldham Werneth Junction 2.14 - 6.15 Manchester Victoria
MPR3 Oldham Werneth Junction to Rochdale 6.15 - 14.27 Manchester Victoria via Dean Lane
MPR4 Middleton Junction to Oldham Werneth Junction 5.24 - 6.68 Manchester Victoria via Moston
MPT Merton Park to Tooting Line 3.56 - 5.51 Streatham South Junction via Wimbledon/Merton Park
MRB Milner Royd Junction and Bradford Interchange Line 29.20 - 40.41 Manchester Victoria via Rochdale
MRC Moor Row Junction to Corkickle Branch 72.72 - 73.73 Carnforth Parallels CBC1
MRG Merthyr Goods Branch 23.62 - 24.28 Cardiff Bute Road Formerly MEG
MRH Macclesfield and Rose Hill Marple Branch 0.00 - 11.02 Macclesfield
MRJ Margam Moors Junction 198.64 - 199.20 Paddington via Stroud
MRL Maryhill Line (Westerton to Cowlairs West Junction) see separate portions
MRL1 Maryhill Park Junction to Cowlairs West Junction 5.51 - 8.26 High Street via Hyndland
MRL2 Maryhill Park Junction to Knightswood North Junction 4.40 - 5.67 Glasgow Queen Street High Level
MSB Murrow to Sutton Bridge Line ?? - 14.61 - 26.18 - ?? Duplicates PMY1?
MSC Masborough South Curve 161.50 - 161.72 St Pancras via Chesterfield and Treeton
MSD Manchester South District Railway see separate portions
MSD1 Heaton Mersey Station Junction to Heaton Mersey East Junction 0.00 - 0.66 Heaton Mersey Station Junction
MSD2 Heaton Mersey Station Junction to Chorlton Junction 182.22 - 185.54 St Pancras
MSG March and Spalding Line see separate portions
MSG1 Whitemoor Junction to Grassmoor Junction 86.20 - 87.05 Liverpool Street via Clapton and Ely
MSG2 Grassmoor Junction to former Regional Boundary 25.63 - 26.63 Huntingdon South Junction via St Ives (reverse)
MSG3 Former Regional boundary to Spalding 26.63 - 44.07 Huntingdon South Junction via St Ives (reverse)
MSK Misk Branch 0.00 - 0.57 Misk Branch Junction
MSL Birmingham Moor Street Line 128.53 - 128.70 Paddington via Didcot
MSM Morecambe South Junction and Morecambe Branch 0.00 - 2.50 Morecambe South Junction
MSN Marston Branches see separate portions
MSN1 Marston Branch 0.00 - 1.66 Northwich East Junction Also known as Salt Branch No 1
MSN2 Marston Branch No 2 0.00 - 0.46 Wincham Lane Junction Also known as Salt Branch No 2
MSN3 Marston Branch No 3 0.00 - 0.70 Northwich Central Junction Also known as Salt Branch No 3
MSR Mossend Spur ?? - ??
MSS Misson Branch 147.67 - 155.48/ 0.00 - 7.61 Haxey
MST Mosley Street Branch 0.00 - 0.28 Mosley Street Branch Junction
MSV Morriston and Swansea Vale Branch 1.34 - 6.23 Swansea St Thomas Station
MSW Minster South to Minster West Curve 81.67 - 82.21 Charing Cross via Chelsfield and Canterbury West
MSZ Moreton & Shipston Tramway/Shipston-On-Stour Branch 91.49 - 100.56 Paddington via Didcot and Charlbury
MTA Merthyr Tredegar and Abergavenny Line 0.00 - 18.16 Abergavenny Junction 13.74 - 15.31 = part RRZ 25.26 - 26.63 ex Cardiff East Dock
MTD Middleton Towers to Dereham line 3.44 - ≈26.44 King's Lynn Junction Continuation of MIT
MTE Menstrie Branch (Stirling) 0.00 - 3.45 Cambus
MTJ Mickle Trafford Junctions see separate portions
MTJ1 Up/Down Warrington Line 0.00 - 0.15 Mickle Trafford Junction
MTJ2 Up/Down Passenger Line 35.24 - 35.41 Manchester Central
MTK Melmerby And Thirsk Line 31.43 - 37.47 Leeds Wortley Junction via Pannal Junction and Starbeck avoiding Harrogate
MTL Methil Docks Branch (Glenrothes) see separate portions
MTL1 Thornton North Junction to East Fife Central Junction 0.13 - 4.65 Thornton North Junction
MTL2 East Fife Central Junction to Methil Boundary 5.09 - 7.34 Thornton West Junction via Wemyss Castle
MTM Meltham Branch 0.00 - 3.43/ 1.39 - 5.02 Meltham Junction/Huddersfield station
MTN Morton Branch 0.00 - 1.68 Morton Branch Junction
MTY Minsterley Branch 0.00 - 4.53 Cruckmeole Junction
MUP March Up and Down Yards 85.30 - 85.66 Liverpool Street via Clapton and Ely
MVB Manchester Victoria and Bury Line see separate portions
MVB1 Manchester Victoria to Queens Road Junction 0.00 - 1.38 Manchester Victoria via Collyhurst Tunnel
MVB2 Queens Road Junction to Radcliffe North Junction 1.21 - 7.65 Manchester Victoria via Cheetham Hill Junction
MVB3 Radcliffe North Junction to Bury Loco Junction 7.65 - 8.63 Manchester Victoria via Cheetham Hill Junction
MVB4 Bury Loco Junction to Bury Loop Junction 8.63 - 9.73 Manchester Victoria via Cheetham Hill Junction
MVC Manvers Main Colliery Branch (Midland) 0.00 - 0.04 Manvers Main Colliery Junction also listed 169.08 - 169.10
MVE Manchester Victoria and Euxton Junction Line see separate portions
MVE1 Manchester Victoria to Bolton 0.00 - 10.40 Manchester Victoria
MVE2 Bolton to Euxton Junction 10.40 - 25.31 Manchester Victoria
MVL Manchester Victoria and Huddersfield Line see separate portions
MVL1 Miles Platting to Stalybridge Junction 1.30 - 7.46 Manchester Victoria
MVL2 Stalybridge Junction to Stalybridge Station 7.46 - 7.74 Manchester Victoria
MVL3 Stalybridge Station to Heaton Lodge Junction 7.74 - 29.45 Manchester Victoria via Stalybridge
MVL4 Heaton Lodge South Junction (formerly Heckmondwike Junction) to Heaton Lodge East Junction 28.78 - 29.74 Manchester Victoria via Stalybridge
MVM Manchester Victoria and Miles Platting Line 0.00 - 1.30 Manchester Victoria
MVN Manchester Victoria and Normanton Line see separate portions
MVN1 Manchester Victoria to Thorpes Bridge Junction 0.09 - 2.31 Manchester Victoria
MVN2 Thorpes Bridge Junction to Normanton 2.17 - 50.31 Manchester Victoria via Rochdale
MVR Manifold Valley Light Railway 0.00 - 8.15 Waterhouses
MVY Moss Valley Branch 0.70 - 2.62 Croes Newydd North Fork Junction
MVZ Merthyr Vale Branch 0.00 - 0.24 Merthyr Vale Junction
MWA Milton West Junction to Asfordby Junction Line ?? - ??
MWB Marlow Branch 0.00 - 2.61 Bourne End
MWC Mouldsworth and Helsby West Cheshire Junction Branch 31.05 - 34.77 Manchester Central
MWD Market Weighton and Driffield Line 0.00 - 13.15 Market Weighton East Junction
MWF Mossend West Fork 0.00 - 0.39 Mossend West Junction
MWJ Marcheys House Junction to Winning Crossing Junction Curve 0.00 - 0.31 Marcheys House Junction
MWL March West Line 0.00 - 0.13 March West Junction
MWM Middlesbrough West Marsh Line 0.00 - 0.36 junction with MMH1
MWN Grimsby Dock Branch 107.69 - 108.44 Manchester London Road via Woodhead
MWT Margam West Curve 0.00 - 0.33 Copper Works Junction
MWY Mwyndy Branch/Brofiscin Branch 0.00 - 2.63 Mwyndy Junction Formerly 0.47 - 3.30 ex Llantrisant Junction
MWZ Monds Works Loop 0.00 - 0.13 Mond Works Junction
MYB Merrybent Branch 0.00 - 5.68 Merybent Junction
MYC Midland Yard Junction to Canal Farm Junction (Nuneaton North Chord) 0.00 - 0.69 Midland Yard Junction
MYD Millerhill Junction to Millerhill Yard Junction Line 0.00 - 0.71 Millerhill Junction = MHE??
MYL Margam Yard Line 197.41 - 199.31 Paddington via Stroud
MYO Mossend Down Yard Now ZZD1
MYP Mossend Up Yard Now ZZC9
MYS Meadows Yard to Seafield Line ?? - ?? Edinburgh area
MYT Maryport Elizabeth Dock Line 0.00 - 0.56 Maryport Junction
MYW Ministry of Works (Westerleigh East) Loop 106.43 - 107.04 Paddington Formerly WLE