Ironstone workings (Birtley) - 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The information on this website is based on a range of published and unpublished works.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) Archaeologia Aeliana 2nd series 7 1876 9-10 (G R Hall)
2) Richmond, I A, 1955. Roman Britain. (159)
3) Field Investigators Comments F1 EG 03-MAY-1956