Geology for ELR AJM1 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 |
|---|---|---|---|
| 137M 0799y to 137M 1595y | Clay, Silt and Sand | Alluvium | Millstone Grit Group - Mudstone, Siltstone and Sandstone |
| 137M 1595y to 138M 0165y | Millstone Grit Group - Mudstone, Siltstone and Sandstone | ||
| 138M 0165y to 138M 0385y | Clay, Silt and Sand | Alluvium | Millstone Grit Group - Mudstone, Siltstone and Sandstone |
| 138M 0385y to 140M 1485y | Millstone Grit Group - Mudstone, Siltstone and Sandstone | ||
| 140M 1485y to 141M 0605y | Bowland High Group and Craven Group Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 141M 0605y to 141M 1265y | Millstone Grit Group - Mudstone, Siltstone and Sandstone | ||
| 141M 1265y to 143M 1265y | Bowland High Group and Craven Group Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 143M 1265y to 143M 1485y | Dinantian Rocks Ⓤ - Limestone with Subordinate Sandstone and Argillaceous Rocks | ||
| 143M 1485y to 143M 1595y | Bowland High Group and Craven Group Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 143M 1595y to 144M 0055y | Dinantian Rocks Ⓤ - Limestone with Subordinate Sandstone and Argillaceous Rocks | ||
| 144M 0055y to 144M 0605y | Unnamed Extrusive Rocks, Carboniferous - Mafic Lava | ||
| 144M 0605y to 145M 0632y | Dinantian Rocks Ⓤ - Limestone with Subordinate Sandstone and Argillaceous Rocks |