Paleochannel, Houghall Farm, Durham (Houghall) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | 2001 | Durham County Council Digital Vertical Aerial Photograph Collection 2001 | ||
| 2 | Edwards, B | 26-May-2006 | Geophysical Survey At Houghall Farm | 21-Sep-2021 LLP |
| 3 | 2022 | Comment by Nicholas Boldrini, HER Officer DCC 2022 | 31/03/2022 | |
| 4 | Ordnance Survey | 1856 to 1865 | First Edition Ordnance Survey Map | |
| 5 | Durham County Council | 16-Sep-2021 | Paleochannel, Houghall Farm, Durham Local Listing Form | Local Heritage List proforma |
| 6 | Basell, L S, Brown, A G, Hosfield, R T, Toms, P | 2011 | The Geoarchaeology of Palaeolithic Rivers of South West Britain in 'Geoarchaeology, Climate Change and Sustainability' | Used to inform Local Listing |
| 7 | Ordnance Survey? | 02-Sep-1987 | Aerial photograph of Houghall Farm | |
| 8 | Ordnance Survey? | 22-Mar-1968 | Aerial photograph of Houghall Farm |