+**Offax27s Dyke** is a substantial linear [Earthwork](/wiki/earthwork) stretching across the borderlands of [Ancient Britain](/wiki/ancient_britain). This ancient barrier, primarily an earthen rampart and ditch, once marked the frontier between the Welsh kingdoms and Anglo-Saxon Mercia.
+## See also
+- [King Offa](/wiki/king_offa)
+- [Hadrian's Wall](/wiki/hadrian's_wall)
+- [Ancient Fortification](/wiki/ancient_fortification)
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