Haggle Rigg lime kiln (Simonburn) - 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The information on this website is based on a range of published and unpublished works.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) OS 1:10,000 1972
2) Gates, T, 1999. The Hadrian's Wall Landscape from Chesters to Greenhead: an air photographic survey (NY87SW 35)
3) 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/]
3a) Vertical aerial photograph reference number NMR OS/67310 913 20-AUG-1967