Geology for ELR BHI 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 |
|---|---|---|---|
| 156M 0307y to 156M 1265y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 156M 1265y to 159M 0030y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |