Old Greenlaw Walls Colliery (Duddo) - 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The information on this website is based on a range of published and unpublished works.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) Industrial Monument Survey (Provisional Schedule List) Oct 1973 3
2) Atkinson, F, 1974. Industrial Archaeology of North East England, Volume 2, 242.
3) Instone, E and Cranstone, D, November 1994. Monuments Protection Programme: The Coal Industry. Introduction to Step 3 Site Assessments. (Appendix 1, Northum 3)
4) 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/]
4a) English Heritage Monuments Protection Programme Industrial Monuments Assessment, Step 3 Reports. The Coal Industry, 1994, Northumberland 3