Geology for ELR LGS1 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 |
|---|---|---|---|
| 25M 1406y to 26M 1045y | Diamicton | Till | Unnamed Extrusive Rocks, Silesian - Mafic Lava and Mafic Tuff |
| 26M 1045y to 29M 1375y | Sand and Gravel | Raised Marine Deposits Ⓤ | Scottish Coal Measures Group - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete |
| 29M 1375y to 29M 1705y | Sand and Gravel | Raised Marine Deposits Ⓤ | Unnamed Igneous Intrusion, Carboniferous to Permian - Mafic Igneous-Rock |
| 29M 1705y to 30M 0275y | Sand and Gravel | Raised Marine Deposits Ⓤ | Scottish Coal Measures Group - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete |
| 30M 0275y to 30M 1052y | Sand and Gravel | Raised Marine Deposits Ⓤ | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |