Westgate, Slit Mine (Westgate) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Pickin, J | 1989 | Geology of the North Pennine Orefield | Vol 2, 209 |
| 2 | Dunham, K C | 1990 | The Geology of the Northern Pennine Orefield, Volume 1 TYNE to STAINMORE | |
| 3 | Scheduled Monument/Monuments Protection Programme (MPP) Files | |||
| 4 | Armstrong, J A | 1974 to 1983 | Westgate in Weardale |