Geology for ELR FCO 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 |
|---|---|---|---|
| 12M 0296y to 12M 0935y | Sand | Blown Sand | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 12M 0935y to 13M 1045y | Diamicton | Till | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 13M 1045y to 14M 0385y | Sand | Blown Sand | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 14M 0385y to 14M 1595y | Diamicton | Till | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 14M 1595y to 15M 0275y | Sand | Blown Sand | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 15M 0275y to 15M 0495y | Sand | Blown Sand | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 15M 0495y to 17M 1045y | Sand | Blown Sand | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 17M 1045y to 18M 0495y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 18M 0495y to 18M 1265y | Peat | Peat | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 18M 1265y to 19M 0165y | Diamicton | Till | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 19M 0165y to 19M 0605y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 19M 0605y to 19M 1595y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 19M 1595y to 20M 0055y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 20M 0055y to 20M 0715y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 20M 0715y to 23M 0935y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 23M 0935y to 23M 1595y | Peat | Peat | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 23M 1595y to 26M 0462y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |