Geology for ELR HND1 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 -055y to 0M 0275y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 0M 0275y to 0M 1048y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |