Geology for ELR HCM3 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 -332y to 0M 0055y | Sand and Gravel | Glacial Sand and Gravel | Warwickshire Group - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete |
| 0M 0055y to 0M 0911y | Sand and Gravel | Glacial Sand and Gravel | Warwickshire Group - Siltstone and Sandstone with Subordinate Mudstone |
| 0M 0911y to 0M 0943y | Warwickshire Group - Siltstone and Sandstone with Subordinate Mudstone |