Geology for ELR SJT1 is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology presented should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 22M 0441y to 26M 1299y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |