Geology for ELR GIR 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 |
|---|---|---|---|
| 61M 1218y to 61M 1486y | Sand and Gravel | Raised Marine Deposits Ⓤ | Lanark Group - Sandstone and Conglomerate, Interbedded |