Geology for ELR TSO 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 |
|---|---|---|---|
| 0M -076y to 3M 0935y | Diamicton | Till | Middle Old Red Sandstone Ⓤ - Conglomerate, Sandstone, Siltstone and Mudstone |
| 3M 0935y to 5M 0715y | Clay, Silt and Sand | Alluvium | Middle Old Red Sandstone Ⓤ - Conglomerate, Sandstone, Siltstone and Mudstone |
| 5M 0715y to 6M 1223y | Diamicton | Till | Middle Old Red Sandstone Ⓤ - Conglomerate, Sandstone, Siltstone and Mudstone |