See detailed information for ELR SWY
⚠️ 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 |
|---|---|---|---|
| 81M 0404y to 87M 0825y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 87M 0825y to 87M 0935y | Portland Group - Limestone and Calcareous Sandstone | ||
| 87M 0935y to 88M 0605y | Gault Formation and Upper Greensand Formation Ⓤ - Mudstone, Sandstone and Limestone | ||
| 88M 0605y to 88M 1705y | Portland Group - Limestone and Calcareous Sandstone | ||
| 88M 1705y to 95M 0275y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone | ||
| 95M 0275y to 95M 0820y | Corallian Group - Limestone, Sandstone, Siltstone and Mudstone |