GWR Ogwr Fawr (Ogmore Vale) and Llanharan Branch.

Opened : 1865 (Nantymoel to Blackmill Junction) ,  1876 (Blackmill to Llanharan)

Closed : 1939 (Blackmill to Llanharan)  1958 (passengers) 1984 (coal)

Engineering code : COB

Length: 8m 21ch

The Cardiff and Ogmore Valley Railway Company was incorporated under Cardiff and Ogmore Valley Railway Act 21st July 1873 and amalgamated with the Llynvi and Ogmore Railway by the Llynvi and Ogmore and Cardiff and Ogmore Valley Railways Act 24th July 1876.

Llynvi and Ogmore Railway was amalgamated with Great Western Railway as from 1st July 1883 by the Great Western and Llynvi and Ogmore Railways Amalgamation Act 29th June 1883.


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The line from Nantymoel to Pant Yr Awel and the Blackmill loop, comprising the original Ogwr Fawr branch has been opened up as the Ogmore Valley Community Route. 
The route through Blackmill village is not easily traceable, however the pillars of the viaduct taking the Cardiff and Ogmore Junction to Bryncethin Junction line across the Ogwr
Fach remain intact. 

The trackbed is traceable from the southern side of Blackmill, where it gets very overgrown, through to Bryncethin Junction. However, much of the trackbed is on private land. The half mile nearest Blackmill is heavily overgrown but may be paralleled. Further towards Bryncethin, the trackbed is easily followable, except for having to climb a couple of fences as far as the bridge under Cefn Carfan Road. In this area the cutting has been infilled. However some space is left under the bridge to allow sheep to pass between fields. A thorn-filled section just to the east of the bridge is the las obstacle before the almost 1 mile section to Bryncethin Junction that is easily followed. Although this section is described north - south, pics were taken south to north.

 At Bryncethin Junction, the Ogmore Branch approaches at a higher level than the Bryncethin Branch. The track then stays in a cutting as far as Heol Laethog Bridge, where the trackbed is accessible.






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Ogmore Vale Station

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Ogmore Vale Station

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Ogmore Vale Station

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Level Crossing light at Ogmore Vale Station

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Signal at Ogmore Vale Station

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Commercial Street Level crossing

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Commercial Street Level crossing

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South of Commercial Street

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South of Blaindy Terrace crossing

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Towards Bridge street crossing

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Bridge north of Washery

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Past Ogmore Washery

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Signal near Ogmore Washery

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Retaining wall

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near Lewiston

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River bridge near Lewiston

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River bridge near Lewiston

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North of Pant Yr Awel

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North of Pant Yr Awel

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Pant Yr Awel Station

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Pant Yr Awel Station

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Through line Bridge at Pant Yr Awel Junction

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Through line Bridge at Pant Yr Awel Junction

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Loop line Bridge at Pant Yr Awel Junction

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Loop line A 4091 bridge

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Loop line Blackmill junction

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Loop line Blackmill junction

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Pillars of Blackmill Viaduct
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Allt y Rhiw area

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Allt y Rhiw area

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Allt y Rhiw area

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Cefn Carfan area

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Cefn Carfan area

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Cefn Carfan area

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North of Cefn Carfan bridge

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Cefn Carfan bridge

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Bryncethin Junction

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West of Heol Laethog Bridge

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Heol Laethog Bridge

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Heol Laethog Bridge

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