Greenhurth Lead Mine, Forest and Frith (Langdon Beck) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Wilcock, D | 1996 to 1998 | IRIS (Index Record for Industrial Sites) Survey Archive | 73009 |
| 2 | Coggins, D | 1989 | Teesdale in Old Photographs | page 59 (i) |
| 3 | 1990 to 1995 | Beamish Archives | ||
| 4 | Remains of Green Hurth 19th century lead mine (County Durham) | |||
| 5 | Ordnance Survey | 1856 to 1865 | First Edition Ordnance Survey Map |