Silvertongue Mine (Shotley Low Quarter) - 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The information on this website is based on a range of published and unpublished works.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: NZ 04 NE 80)
2) OS 1:10,000 1981
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) OS, 1st edn, 6", Northumberland 109, 1865
3b) OS, 2nd edn, 6", Northumberland 109 SE, 1899
3c) Dunham, K C, 1990. The Geology of the Northern Pennine Orefield, Volume 1, HMSO, 228