Cord rig near Hadrian's Wall (Haltwhistle) - 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The information on this website is based on a range of published and unpublished works.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) Gates, T., 1999. The Hadrian's Wall Landscape from Chesters to Greenhead: an air photographic survey, NY76NW/C. This is an unpublished report. Further information can be obtained from here.
(2) This site was seen on an aerial photograph (Ref: T Gates 14745/61-64). Further details about looking at a copy of this photograph can be obtained from the home page.