Srce Year		Plan No.		Date Received
1928						COLDBERRY, Dog
						Parish: Middleton-in-Teesdale. LEAD ORE. Plans held at: Raby Estate Office, Middleton-in-Teesdale.
1928						COLDBERRY, LOW SKEARS and RED GROOVES, Dog, Firestone, Hunt's
						Parishes: Middleton-in-Teesdale; Newbiggin. LEAD ORE. Plans held at: Raby Estate Office, Middleton-in-Teesdale.
1928						COLDBERRY, RED GROOVES, Richardson's
						Parishes: Middleton-in-Teesdale; Newbiggin. LEAD ORE. Plans held at: North of England Institute of Mining and Mechanical Engineers, Newcastle-on-Tyne.
1928						COLDBERRY and SKEARS, Firestone, Hunt's
						Parish: Middleton-in-Teesdale. LEAD ORE. Plans held at: North of England Institute of Mining and Mechanical Engineers, Newcastle-on-Tyne.
1928						COLDBERRY and SKEARS, Hunt's, Tarn, Thompson's
						Parish: Middleton-in-Teesdale. LEAD ORE. Plans held at: North of England Institute of Mining and Mechanical Engineers, Newcastle-on-Tyne. Date of workings: 1827
1928						ASHGILL HEAD, Coldberry, Cowby, Grasshill, Nixon's, Trough
						Parishes: Forest & Frith; Stanhope. LEAD ORE. Plans held at: Raby Estate Office, Middleton-in-Teesdale. Date of workings: 1835
						Map: DUR 30.NW (1923), A 4, 5, 6, 7, 8, 9, 10 ; B 4, 5, 7, 8, 9, 10, 11, 12 ; C 8, 9, 10, 11, 12 ;D 10, 11, 12 ; E 9, 10, 11, 12 ; F 9, 10, 11, 12 ; G 10, 11, 12
						Map: 30.NE (1923), B 1 ; C 1, 2 ; D 1 ; E 1 ; F 1
1928						COLDBERRY, Hunt's, Limestone, Richardson's, Slate Sill
						Parish: Middleton-in-Teesdale. LEAD ORE. Plans held at: North of England Institute of Mining and Mechanical Engineers, Newcastle-on-Tyne. Date of workings: 1888

Map References

The date of the Ordnance Survey edition used for Official puposes is given, in brackets, against the number of each map, e.g. DUR 23.NE (1923) refers to the 1923 edition of Sheet 23 (North East Quarter) for County Durham.

The method of indicating the extent of the workings shown on each plan is that the Six Inch Scale Quarter Sheets of the Ordnance Survey (County Series) have been divided into 1½ inch (¼ mile) squares, lettered vertically A-H and numbered horizontally 1-12, the approximate position of the workings being indicated by the reference squares quoted, thus :—

D12; E11,12; F8,9,10,11,12; G8,9,10,11,12; H9,10,11,12

The plans of abandoned mines are held by the Coal Authority ( https://www.gov.uk/government/organisations/the-coal-authority) at the following address: The Coal Authority, 200 Lichfield Lane, Mansfield, Nottinghamshire, NG18 4RG

Sources

  main page for Coldberry (Lead Ore)