See detailed information for ELR COC
⚠️ 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 |
|---|---|---|---|
| 51M 1317y to 52M 0715y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 52M 0715y to 52M 0825y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 52M 0825y to 53M 0935y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 53M 0935y to 53M 1485y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 53M 1485y to 54M 1485y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 54M 1485y to 55M 1045y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 55M 1045y to 55M 1485y | Sand and Gravel | Glacial Sand and Gravel | |
| 55M 1485y to 56M 1265y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 56M 1265y to 56M 1595y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 56M 1595y to 57M 0715y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 57M 0715y to 57M 1485y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 57M 1485y to 58M 1265y | Sand and Gravel | Glacial Sand and Gravel | Thames Group - Clay, Silt, Sand and Gravel |
| 58M 1265y to 61M 0605y | Diamicton | Till | Thames Group - Clay, Silt, Sand and Gravel |
| 61M 0605y to 68M 0605y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 68M 0605y to 69M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |
| 69M 0385y to 69M 0605y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 69M 0605y to 69M 1261y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |