Colliery, Cockfield Fell, Cockfield (Cockfield) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Ordnance Survey | Ordnance Survey Archaeology Card AKA National Non-Intensive Archaeological Record (England) | NZ12SW13 | |
| 2 | Mackenzie, E, Ross, M, Mackenzie and Dent | 1834 | An Historical, Topographical, and Descriptive View of the County Palatine of Durham Vol II | 2, p.214 |
| 3 | Aerofilms | 1991 | Aerofilms/91/COL/116 Run 22 0499 | Aerofilms/91/COL/116 Run 22 0499 |
| 4 | Nov-1971 | BKS Surveys Ltd Aerial Photograph Collection | (November 1971) | |
| 5 | Roberts, B | 17-Jul-1978 | A report on Cockfield Fell, Co. Durham | 17th of July 1978 |