Rock art finds spot, north-east of Low Farm, Knitsley, Delves, Healeyfield (Delves) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Harding, A, Durham Archaeological Journal | 1987 | Recent Acquisitions by the Old Fulling Mill Museum of Archaeology, Durham | Vol 3, 99 |
| 2 | Beckensall, S | 1983 | Northumberlands Prehistoric Rock Carvings | p55, 236 |