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Latitude: 52.1564 / 52°9'23"N
Longitude: -3.6151 / 3°36'54"W
OS Eastings: 289605
OS Northings: 252134
OS Grid: SN896521
Mapcode National: GBR YC.6CY1
Mapcode Global: VH5DF.9266
Entry Name: Pen Twr ring cairn
Scheduled Date: 11 September 2007
Source: Cadw
Source ID: 4293
Cadw Legacy ID: BR371
Schedule Class: Religious, Ritual and Funerary
Category: Ring cairn
Period: Prehistoric
County: Powys
Community: Treflys
Traditional County: Brecknockshire