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 y Post

Category: Educational | Scientific

Subcategory: Igneous

Network: Tertiary Igneous

Subnetwork: Tertiary Intrusions Into Pre-Carboniferous Sequences

Local Authority area: Mon

National Park area:

Area of site in hectares: 2.67644056

Grid reference: [SH 24236 79575]

GR easting: 224236.4853

GR northing: 379575.0658

Site geometry: Site boundary