Coalcleugh Pits (West Allen) - 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The information on this website is based on a range of published and unpublished works.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) RCHME Data Exchange 1997 (NMR No: NY 84 SW 24)
(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) Ordnance Survey map 1st edition, 6" Northumberland 111, 1865
(2b) Ordnance Survey map 2nd edition, 6" Northumberland 111 NW, 1899
(2c) Vertical aerial photograph NMR RAF/540/616 4166 11-OCT-1951
(2d) Vertical aerial photograph Next Perspectives PGA Imagery NY7944 12-MAY-2001