Geology for ELR ECR is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology presented should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 73M 0600y to 74M 0715y | Silt | Brickearth | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay |
| 74M 0715y to 74M 1595y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay |
| 74M 1595y to 76M 0495y | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay | ||
| 76M 0495y to 76M 0935y | Thames Group - Clay, Silt, Sand and Gravel | ||
| 76M 0935y to 78M 1705y | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay | ||
| 78M 1705y to 80M 0605y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay |
| 80M 0605y to 80M 0757y | Bracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay |