Geology for ELR NLL 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 |
|---|---|---|---|
| 159M 1177y to 160M 0165y | Lower Devonian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 160M 0165y to 160M 1375y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 160M 1375y to 161M 0055y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 161M 0055y to 161M 0275y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 161M 0275y to 161M 0495y | Clay, Silt and Sand | Alluvium | |
| 161M 0495y to 161M 0605y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 161M 0605y to 161M 1485y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 161M 1485y to 162M 0167y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |