Geology for ELR RAD 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 |
|---|---|---|---|
| 0M 0324y to 1M 1375y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 1M 1375y to 2M 0495y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 2M 0495y to 2M 0935y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 2M 0935y to 3M 0055y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 3M 0055y to 3M 0385y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 3M 0385y to 3M 1485y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 3M 1485y to 4M 1013y | Clay, Silt and Sand | Alluvium | Lower Devonian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |