Natural Resources Wales. Data downloaded from DataMapWales and used under the Open Government Licence for Public Sector Information (OGL). This information is provided to highlight sites of geological interest in Wales. For issues relating to sites that have RIGS status please consult the relevant authorities for up to date information regarding designation status, planning and other administrative issues.
Porth Swtan
Category: Scientific
Subcategory: Quaternary & Geomorphology
Network: Pre-Quaternary landscape evolution
Subnetwork: Hydrothermal alteration
Local Authority area: Mon
National Park area:
Area of site in hectares: 4.66306807
Grid reference:
GR easting: 230067.0385
GR northing: 389389.5771
Site geometry: