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Latitude: 51.7109 / 51°42'39"N
Longitude: -3.5653 / 3°33'55"W
OS Eastings: 291945
OS Northings: 202515
OS Grid: SN919025
Mapcode National: GBR HD.3KWK
Mapcode Global: VH5GL.5807
Entry Name: Ffos Toncenglau cross ridge dyke
Source ID: 2247
Cadw Legacy ID: GM118
Schedule Class: Defence
Category: Cross Ridge Dyke
County: Rhondda, Cynon, Taff (Rhondda Cynon Taf)
Community: Rhigos (Y Rhigos)
Traditional County: Glamorgan
The monument comprises the remains of a cross ridge dyke - a linear bank running along the upper edge of the west-facing slopes of a small steep valley situated in moorland at the head of the Rhondda Valley. The tradition of cross ridge dyke building appears to roughly span a millennium, beginning in the middle Bronze Age and lasting throughout the Iron Age (although perhaps with reuse and limited construction in the medieval period). They have been interpreted as territorial boundaries, defnining areas of political influence (including internal territorial boundaries and land allotment within communities) and perhaps having ritual associations. The area covered by the original designation did not relate accurately to the remains on the ground and the scheduled area has been revised in order to rectify the original designation.
The monument is of national importance for its potential to enhance our knowledge of prehistoric land division and perhaps ritual practices. The monument is an important relic of a prehistoric landscape and retains significant archaeological potential, with a strong probability of the presence of environmental and structural evidence. The exceptional size of the cross ridge dyke increases its importance.
The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.
Other nearby scheduled monuments