Cup-and-groove-marked boulder, Wash Beck, above Osmaril Gill, Barningham Moor, Teesdale (Barningham Moor) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Northumberland County Council, Durham County Council | 2006 | NADRAP Durham Box File 4 | Rock Art ID # 905 |
| 2 | Beckensall, S | 1980 to 1997 | 3 photographs of a cup-and-ring-marked boulder, Osmaril Gill, Barningham Moor, Teesdale | |
| 3 | Laurie, T | Dec-1986 to 1993 | Cup and Ring Sites on Barningham Moor, Co. Durham | Ref. 11 |
| 4 | Beckensall, S | 1980 to 1997 | Illustration of a cup-and-groove-marked boulder, Osmaril Gill, Barningham Moor, Teesdale | |
| 5 | Gledhill, T, Nichol, R | 1997 to 1997 | Monuments Protection Programme (MPP) County Durham Accelerated Scheduling Programme Folder: MPP Barningham Moor Fieldforms Jan-March 1997 | AI number: 146086 Date of Visit: 13/01/1997 |
| 6 | Watson, E | 2022 | Personal comment by Dr Emma Watson - Senior Archaeologist, 2022 |