Ancient Monuments

History on the Ground

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Cross Ridge Dyke & Cairn on Twyn Hywel

A Scheduled Monument in Aber Valley (Cwm Aber), Caerphilly (Caerffili)

« Monument Details

Monument location is shown with schedule boundary polygons where available, otherwise marked as a point on the map which approximates to the centre of the monument.


Latitude: 51.6116 / 51°36'41"N

Longitude: -3.3001 / 3°18'0"W

OS Eastings: 310070

OS Northings: 191111

OS Grid: ST100911

Mapcode National: GBR HS.9LM7

Mapcode Global: VH6DK.RR6D

Entry Name: Cross Ridge Dyke & Cairn on Twyn Hywel

Scheduled Date: 10 February 1994

Source: Cadw

Source ID: 2917

Cadw Legacy ID: GM456

Schedule Class: Defence

Category: Cross Ridge Dyke

Period: Unknown

County: Caerphilly (Caerffili)

Community: Aber Valley (Cwm Aber)

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