British Geological Survey - Wales

The British Geological Survey – Wales is a comprehensive resource offering detailed geological maps and summaries of Wales's diverse landscapes. Accessible through the BGS Maps Portal, it provides over 45,000 high-resolution viewing images of geological maps produced since 1832, including the 1:50,000 and 1:63,360 series. These maps cover various regions of Wales, highlighting the complex bedrock and superficial deposits that shape the terrain.

Additionally, the BGS offers regional geological summaries, providing informative overviews of the geology of each region, complete with generalised geological maps, cross-sections, and illustrations. For those interested in interactive exploration, the BGS Geology Viewer allows users to access bedrock and superficial geology data across most modern browser-enabled devices, featuring 3D visualisation and geolocation capabilities.

 Whether you're a geology enthusiast, student, or professional, these resources offer invaluable insights into the geological history and structure of Wales.