Geology for ELR RFR 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 |
|---|---|---|---|
| 36M 0339y to 36M 1045y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 36M 1045y to 37M 0018y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |