Regional geology, building stones and quarries in North West Wales

North West Wales's geology, spanning from the Late Proterozoic to Upper Carboniferous, reveals a rich diversity of lithologies that have significantly influenced its built environment. The region's landscape, covered by thick glacial deposits, has provided a wide range of building stones, from agricultural field walls to monumental projects like Edward I's castles. Notably, the Cambrian Slate (Llanberis Slate Formation) is recognized as a Global Heritage Stone Resource. This study synthesizes the regional geology, stratigraphy, and the historical use of these stones, including the quarrying industry's role. By examining the temporal and spatial distribution of these lithologies, it highlights their enduring impact on local architecture and heritage.

Siddall, R. (2021). Regional geology, building stones and quarries in North West Wales. Natural Stone and World Heritage, 11–80. https://doi.org/10.1201/9781003002444-2