See detailed information for ELR PRA
⚠️ Geology shown below is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology relative to the mileages should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 42M 0481y to 44M 1375y | Grey Chalk Subgroup - Chalk | ||
| 44M 1375y to 48M 1485y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 48M 1485y to 49M 0055y | Sand and Gravel | River Terrace Deposits Ⓤ | Portland Group - Limestone and Calcareous Sandstone |
| 49M 0055y to 49M 0605y | Portland Group - Limestone and Calcareous Sandstone | ||
| 49M 0605y to 49M 1109y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone |