- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°7'44"N 3°51'50"W
- Eastings/Northings: 272500, 249500
- OS Grid: SN725495
- Mapcode Local: GBR Y1.845K
- Mapcode Global: VH4GT.ZR37
Location and coordinates are for the approximate centre of Carn Nant-yr-ast within this administrative area.
Geographic features and populated places may cross administrative borders.