Groat Haugh sub-oval enclosure (Norham) - 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The information on this website is based on a range of published and unpublished works.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) Externally held archive reference RCAHMS NMR Archive Card
1a) Aerial photograph Aps (XS/500-2/po (Harding 79/003/1a-3a))
1b) Aerial photograph Aps (XS/503-4/po (Harding 79/006/17a-18a))
1c) Aerial photograph Aps (XS/972-5 RCAMSAP 82)
1d) Aerial photograph Aps (XS/288-290 RCAMSAP 76)
2) Harding, A F with Lee, G E, 1987. Henge Monuments and Related Sites of Great Britain. BAR Brit Ser 175 (211-13) Site 125A
3) Oral information, correspondence or staff comments, Bill Ford, April-1996
4) Aerial photograph NT8945D-L and NT8945T-AC Mus Antiq Newcastle
5) 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/]
5a) Field Investigators Comments Humphrey Welfare and Vivien Swan/1994/RCHME: Roman Camps in England Project