Boundary Stone, River Derwent, Muggleswick (Muggleswick) - 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: 1809, 11, 115 |
| 2 | Durham County Council | Boundary Stone River Derwent (NZ 0530 4958) | ||
| 3 | Boundary Stone River Derwent (NZ 0530 4958) (north face) | |||
| 4 | Boundary Stone River Derwent (NZ 0530 4958) (south face) | |||
| 5 | Boundary Stone, River Derwent (NZ 0530 4958) in its setting |