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Latitude: 53.0831 / 53°4'59"N
Longitude: -4.3353 / 4°20'7"W
OS Eastings: 243679
OS Northings: 356537
OS Grid: SH436565
Mapcode National: GBR 5F.9WW5
Mapcode Global: WH43L.CRSS
Entry Name: Dinas Dinlle Seagull Trench
Scheduled Date: 8 June 2006
Source: Cadw
Source ID: 1168
Cadw Legacy ID: CN396
Schedule Class: Defence
Category: Seagull Trench
Period: Post Medieval/Modern
County: Gwynedd
Community: Llandwrog
Traditional County: Caernarfonshire