See detailed information for ELR RTT
⚠️ 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 |
|---|---|---|---|
| 22M 1127y to 23M 0825y | Lower Greensand Group - Sandstone and Mudstone | ||
| 23M 0825y to 25M 1705y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 25M 1705y to 26M 1705y | Wealden Group - Sandstone and Siltstone, Interbedded | ||
| 26M 1705y to 38M 1485y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 38M 1485y to 40M 0825y | Wealden Group - Sandstone and Siltstone, Interbedded | ||
| 40M 0825y to 41M 0495y | Wealden Group - Mudstone, Siltstone and Sandstone | ||
| 41M 0495y to 41M 1375y | Clay, Silt and Sand | Alluvium | Wealden Group - Mudstone, Siltstone and Sandstone |
| 41M 1375y to 42M 0239y | Clay, Silt and Sand | Alluvium | Wealden Group - Sandstone and Siltstone, Interbedded |