Porth y Galen-ddu is a bay in Wylfa Power Station, Isle of Anglesey
Built-Up Area: Wylfa Power Station
Parish/Community: Llanbadrig
Unitary Authority: Isle of Anglesey
Region: Wales
Category: Water Feature
Type: Bay
Latitude/Longitude: 53°25'6"N 4°29'8"W
Eastings/Northings: 234919, 394192
OS Grid: SH349941
Mapcode Local: GBR HM9N.N2Z
Mapcode Global: WH41Z.2B9K
Location and coordinates are for the approximate centre of Porth y Galen-ddu within this administrative area.
Geographic features and populated places may cross administrative borders.