See detailed information for ELR HHT
⚠️ 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 |
|---|---|---|---|
| 4M 0002y to 4M 0165y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 4M 0165y to 4M 0825y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 4M 0825y to 4M 1045y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 4M 1045y to 5M 0343y | Thames Group - Clay, Silt, Sand and Gravel |