OFFA'S DYKE; CLAWDD OFFA (MAIN ENTRY)
OFFA'S DYKE: VRON SECTION
WAT'S DYKE: TWO SECTIONS BETWEEN CLAWDD...
WAT'S DYKE S OF RHOS-Y-BRWYNER
OFFA'S DYKE: SECTION SW FROM TATHAM BRIDGE
OFFA'S DYKE: SECTION S (?N) OF BRYN YR...
OFFA'S DYKE: (NORTH) SECTION AT COEDPOETH
OFFA'S DYKE; WHITFORD DYKE, SECTION NORTH...
CEFN-Y-CRUG DYKE
TY-NEWYDD, DYKE