Industrial Wales - Monmouthshire's Rhymney Valley
The Northern Rhymney Valley
From Aberbargoed to Blaen Rhymney and the Darran Valley.
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The Industrial Archaeology and History of the Northern Rhymney Valley and the Darran Valley

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The Darran Valley

Bargoed to Groes-faen Colliery - SO 1346 0057

Lansbury Park Estate has been built over the site of the colliery, which was working from 1863 to 1892 at the end of a short branch of the Caerphilly - Machen line. The colliery branch can be followed as footpaths through the estate. In 2012 the shafts were re-opened for a new concrete cap to be built. Opened beside the colliery, the gasworks functioned until the 1920s. Some decent stone walls remain to show it's positionand on Google Earth you can just make out the gasholder site in the grass.

Wingfield Colliery sidings - SO 1345 0055

The screens and sidings on the BMR opposite Groes-faen Colliery. Previously the tramways from Bryncoch Colliery had a loading bank here.

Groes-faen Colliery - SO 1350 0060

Darran Colliery - SO 1305 0125

Deri Village and Station - SO 1285 0170

In the hills around Deri

Deri overbridge - SO 1254 0247

The wooden overbridge spanning the BMR main line and the Ogilvie Colliery branch is now a listed structure and was restored in 2010.

Ogilvie Colliery - SO 1202 0298

Fochrhiw and Pentwyn

New Tredegar

Elliots Colliery and Cwm Syfiog

Tir-phil - SO 1350 0355

White Rose Colliery - SO 1405 0385

The amazing 'colliery in a cupboard', probably a drainage level as the main level and second level were at the other end of the tramway which terminated by the BMR here. White Rose Colliery was part of Thomas Powell's empire, later Powell Duffryn, working by 1850 and closed in 1908.

New Tredegar Colliery - SO 1380 0455




A vanished village below Pontlottyn

Rhymney Merthyr Colliery - SO 1215 0555



Nant Llesg Pit - SO 1050 0830

Nant Llesg Pit and Pitwellt were ironstone mines either side of Nant Llesg House, open by 1875 and disused by 1898. By 1915 a series of large water tanks and buildings were built in the grounds of Nant Llesg House but are now disused. The Rumney Ironstone Railway to the limestone quarries at Twynau Gwynion ran past the site.

Union Ironworks, Llechryd - SO 1085 0917

This is an 1802 upper blast furnace on the site of the Union Ironworks, the first ironworks in Rhymney. A Boulton and Watt 24cyl, 5 stroke (double) blowing engine was supplied in 1801.

All rights reserved - Phil Jenkins