Prehistoric field boundary south of Sycamore Gap (Henshaw) - 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The information on this website is based on a range of published and unpublished works.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) Scheduled Monument Notification 14-Jul-1997
2) English Heritage, 2002. Housesteads Roman Fort Conservation Plan, Volume 2 Gazetteer, 246 (A139)
3) Gates, T, 2004. The Hadrian's Wall Landscape from Chesters to Greenhead: an air photographic survey (NY76NE 144)
4) https://www.pastscape.org.uk/hob.aspx?hob_id=1406431
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) Oblique aerial photograph reference number NMR NY 7667/37 (19856/52) 04-MAY-2000