Here is information about Sheet 231:
This One Inch to the Mile map covers an area at the north of the Valleys, with the industrial area around Merthyr Tydfil and Aberdare, and the much more rural part of south Brecknockshire, an area known as Fforest Fawr. Near the centre of the map is the village of Ystradfellte and we also include a detailed map of this on the reverse. The northern part of the Taf and Cynon valleys are shown, together with a portion of the Vale of Neath, and there are numerous railways, including the Neath & Brecon and the Brecon & Merthyr lines. Around Merthyr and Aberdare are collieries and ironworks, the disused Glamorganshire Canal, mineral lines; while Hirwaun and Blaengwrach are also included. The map stretches from Resolven northward to Beacons Reservoir, and from Pen-rhos eastward to Dowlais Top station.
It is not possible to list the many hamlets, farmsteads and other topographical features shown on these maps. However, you might find it useful if we here list the majority of the principal villages and church parishes that are included on this map. Links are given for those for which detailed large-scale maps are also available.
Index maps are available showing the areas covered by the Inch to the Mile maps. Go to This page
You can order maps direct from our On-line Mapshop. For a full list of Inch to the Mile maps go to the Inch to the Mile page, where you will also find details of prices. For information on the rest of the series, go to The Index Page.