Geology for ELR MWN 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 |
|---|---|---|---|
| 107M 1508y to 108M 1705y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 108M 1705y to 109M 0275y | White Chalk Subgroup - Chalk | ||
| 109M 0275y to 109M 1375y | |||
| 109M 1375y to 110M 0199y | White Chalk Subgroup - Chalk |