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Latitude: 52.9139 / 52°54'49"N
Longitude: -4.3003 / 4°18'1"W
OS Eastings: 245419
OS Northings: 337636
OS Grid: SH454376
Mapcode National: GBR 5G.NKTP
Mapcode Global: WH44K.X1D0
Entry Name: Tomen Fawr
Scheduled Date:
Source: Cadw
Source ID: 3441
Cadw Legacy ID: CN031
Schedule Class: Defence
Category: Ringwork
Period: Medieval
County: Gwynedd
Community: Llanystumdwy
Traditional County: Caernarfonshire