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Latitude: 51.6411 / 51°38'27"N
Longitude: -3.5985 / 3°35'54"W
OS Eastings: 289483
OS Northings: 194796
OS Grid: SS894947
Mapcode National: GBR HC.7X5F
Mapcode Global: VH5GY.K0ZS
Entry Name: Clawdd Mawr, Mynydd Caerau
Scheduled Date: 5 July 1955
Source: Cadw
Source ID: 2906
Cadw Legacy ID: GM231
Schedule Class: Monument
Category: Linear earthwork
Period: Early Medieval
County: Neath Port Talbot (Castell-nedd Port Talbot)
Community: Glyncorrwg
Built-Up Area: Blaengwynfi
Traditional County: Glamorgan