Latitude: 53.1828 / 53°10'58"N
Longitude: -4.229 / 4°13'44"W
OS Eastings: 251146
OS Northings: 367397
OS Grid: SH511673
Mapcode National: GBR 5K.3K62
Mapcode Global: WH54D.08GB
Plus Code: 9C5Q5QMC+49
Map layers use either open data or maps from the Ordnance Survey and Maptiler APIs.
Historic map layers are currently experimental and may not necessarily be available all the time.
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NLS (Historic)
Entry Name: Castell Gwylan
Listing Date: 23 April 1998
Last Amended: 23 April 1998
Grade: II
Source: Cadw
Source ID: 19744
Building Class: Domestic
ID on this website: 300019744
Location: On the banks of the Menai Strait, SE of Porthamel Hall.
County: Isle of Anglesey
Community: Llanddaniel Fab
Community: Llanddaniel Fab
Locality: Porthamel
Traditional County: Anglesey