1:250,000 scale map

The bilingual sheet ‘Rocks of Wales / Creigiau Cymru’ showing the bedrock geology of the whole country was published in 1994.  It appears in a green cover and is available at £12.00

1:50,000 scale maps

Four sheets of the ‘England and Wales’ series of geological maps are required to give complete coverage of the Geopark.

• No.212 Llandovery (now available!)
• No.213 Brecon
• No.230 Ammanford (2 versions available - see below)
• No.231 Merthyr Tydfil (2 versions available - see below)

These appear in blue covers and are available at £12.00 each.  Sheets 212 and 213 are also available as parts of packs which contain brief explanations of the local geology. Both packs cost £18.00  Sheet 212 was published in spring 2009.

Sheets 230 and 231 are available as ‘Solid with drift’ versions which show the bedrock geology and as ‘solid and drift’ versions which also show the superficial deposits such as peat, alluvium and glacial deposits.  A 'memoir' describing the area covered by sheet 231 is also available.

1:25,000 scale maps

Coming soon!  A new sheet covering the area around Cribarth and Craig-y-nos in the upper Swansea Valley.  This sheet is being specially prepared to cover a ‘Classic Area’ of South Wales geology within Fforest Fawr Geopark. It is expected to be available in 2009.

Specialist Maps

A South Wales Hydrogeological Map at 1:250,000 scale which covers aspects of groundwater availability, exploitation and quality was also published by the BGS in 1986.  It is available from BGS at a cost of £12.50 in either flat or folded form.

Visit the BGS map shop online.