Balder Bridge, Cotherstone (Hunderthwaite) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Department of Environment, English Heritage, Historic Buildings and Monuments Commission | 1950 | List of buildings of special architectural or historic interest, also known as "Greenbacks" | LB Volume, Map & Item: 1205, 11, 35 |
| 2 | Durham County Council | Balder Bridge, Cotherstone | ||
| 3 | Durham County Council | Balder Bridge, Cotherstone | ||
| 4 | Durham County Council | Balder Bridge, Cotherstone | ||
| 5 | Durham County Council | Balder Bridge, Cotherstone | ||
| 6 | Jervoise, E | 1931 | The Ancient Bridges of the North of England | Page 48 |
| 7 | Durham County Council | 25-May-2016 | 9 photographs of Balder Bridge, Cotherstone | |
| 8 | Ordnance Survey | 1856 to 1865 | First Edition Ordnance Survey Map | 6", Yorkshire 5, 1856 |