See detailed information for ELR BGL2
⚠️ Geology shown below is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology relative to the mileages should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 94M 1298y to 96M 1045y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 96M 1045y to 97M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 97M 0605y to 101M 1265y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 101M 1265y to 102M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 102M 0385y to 102M 0825y | Clay, Silt and Sand | Alluvium | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 102M 0825y to 103M 0605y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 103M 0605y to 104M 0385y | Sand and Gravel | River Terrace Deposits Ⓤ | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 104M 0385y to 104M 1705y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 104M 1705y to 106M 0495y | Sand and Gravel | River Terrace Deposits Ⓤ | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 106M 0495y to 107M 0385y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 107M 0385y to 107M 1155y | Clay, Silt and Sand | Alluvium | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 107M 1155y to 107M 1705y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 107M 1705y to 108M 0715y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 108M 0715y to 108M 1705y | Tremadoc Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 108M 1705y to 109M 0275y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 109M 0275y to 109M 1485y | Tremadoc Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 109M 1485y to 111M 0385y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 111M 0385y to 111M 0715y | Tremadoc Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 111M 0715y to 112M 0605y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 112M 0605y to 112M 1155y | Unnamed Extrusive Rocks, Silurian - Mafic Lava and Mafic Tuff | ||
| 112M 1155y to 113M 0165y | Clay, Silt and Sand | Alluvium | Unnamed Extrusive Rocks, Silurian - Mafic Lava and Mafic Tuff |
| 113M 0165y to 113M 0385y | Unnamed Extrusive Rocks, Silurian - Mafic Lava and Mafic Tuff | ||
| 113M 0385y to 113M 0715y | Llandovery Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 113M 0715y to 115M 0495y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 115M 0495y to 115M 0935y | Lower Devonian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 115M 0935y to 116M 0275y | Dinantian Rocks Ⓤ - Limestone with Subordinate Sandstone and Argillaceous Rocks | ||
| 116M 0275y to 116M 1045y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 116M 1045y to 117M 0385y | Millstone Grit Group - Mudstone, Siltstone and Sandstone | ||
| 117M 0385y to 119M 0825y | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ | ||
| 119M 0825y to 121M 1485y | South Wales Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete | ||
| 121M 1485y to 122M 1500y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |