- Category: Geographic Feature
- Type: Hill or Mountain
- Latitude/Longitude: 52°21'22"N 3°58'37"W
- Eastings/Northings: 265457, 274966
- OS Grid: SN654749
- Mapcode Local: GBR 8X.SMFP
- Mapcode Global: VH4FT.01VK
Location and coordinates are for the approximate centre of Pen-lan-isaf within this administrative area.
Geographic features and populated places may cross administrative borders.