Washpool Scar Sheepwash, Forest-in-Teesdale (Forest-in-Teesdale) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Ordnance Survey | 1856 to 1865 | First Edition Ordnance Survey Map | |
| 2 | Wilcock, D | 1996 to 1998 | IRIS (Index Record for Industrial Sites) Survey Archive | 82151 |