Cross Ridge Dykes of Southeast Wales
Summary
During the spring and early summer of 2006 a survey was undertaken of all known cross-ridge dykes in Glamorgan and Gwent. Cross-ridge dykes are a distinctive monument class in Southeast Wales, particularly in upland Glamorgan. Most of the ridges of the Glamorgan uplands are crossed by short lengths of earthwork banks, possibly designed to control access along these natural route ways. The date of these features is not clear, although it has been suggested they originated in the 8th or 9th centuries AD.