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Cross Ridge Dyke & Cairn on Twyn Hywel is a linear earthwork and associated burial monument situated in Wales, designated as a scheduled ancient monument under Cadw reference GM456. The dyke represents a cross-ridge defence, a form of linear fortification constructed to control or restrict movement across elevated terrain, typically dating to the Iron Age or early medieval period. The monument comprises a substantial bank with an associated ditch, positioned to cut across the ridge, together with a cairn which may indicate ritual or burial activity at the site. Such cross-ridge dykes often functioned as territorial boundaries, stock barriers, or defensive positions commanding strategic landscape positions, though their precise chronological attribution and function at this specific location require further archaeological investigation to establish with certainty.
Cross Ridge Dyke & Cairn on Twyn Hywel is a scheduled monument protected by Cadw under reference GM456. View the official record →
Cross Ridge Dyke & Cairn on Twyn Hywel is a linear earthwork and associated burial monument situated in Wales, designated as a scheduled ancient monument under Cadw reference GM456. It is designated a Scheduled Ancient Monument by Cadw under reference GM456.
Cross Ridge Dyke & Cairn on Twyn Hywel dates from the unknown period, and is classified as a cross ridge dyke. It is one of over 32,000 scheduled monuments protected across the UK.
Cross Ridge Dyke & Cairn on Twyn Hywel is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM456.
Several scheduled monuments lie within 10 km, including Tomen y Clawdd (4.7 km), The Pottery, Nantgarw (6 km), Five Round Barrows on Garth Hill (7.6 km).
Aubrey generates in-depth historical research for any address in the UK — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Cross Ridge Dyke & Cairn on Twyn Hywel