Rectilinear enclosure south-east of High Close House (Heddon-on-the-Wall) - 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The information on this website is based on a range of published and unpublished works.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) https://www.pastscape.org.uk/hob.aspx?hob_id=1440761, accessed 20-AUG-2014
2) This record includes National Record of the Historic Environment Information provided by Historic England on 4 January 2021 licensed under the Open Government Licence [http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/]
2a) Vertical aerial photograph reference number NMR OS/77132 3 28-AUG-1977