Medieval cultivation terraces (Duddo) - Source of Reference
The information on this website is based on a range of published and unpublished works. Below is a list of the source of information used in writing this record.
1) Ordnance Survey Map OS 25 inch 1963
2) Field Investigators Comments F1 EG 02-NOV-1955
3) Field Investigators Comments F2 WDJ 18-DEC-1962