See detailed information for ELR KSL
⚠️ 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 |
|---|---|---|---|
| 97M 0903y to 97M 1595y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 97M 1595y to 98M 0165y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 98M 0165y to 98M 0825y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 98M 0825y to 99M 0825y | Sand and Gravel | River Terrace Deposits Ⓤ | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 99M 0825y to 102M 0605y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 102M 0605y to 103M 0495y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 103M 0495y to 103M 1155y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 103M 1155y to 105M 0825y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 105M 0825y to 106M 0495y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 106M 0495y to 109M 0275y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 109M 0275y to 112M 1485y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 112M 1485y to 113M 1375y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 113M 1375y to 113M 1595y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 113M 1595y to 114M 1595y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 114M 1595y to 115M 0605y | Diamicton | Till | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 115M 0605y to 115M 1595y | Diamicton | Till | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 115M 1595y to 116M 0715y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 116M 0715y to 116M 1045y | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ | ||
| 116M 1045y to 116M 1155y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 116M 1155y to 118M 0605y | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ | ||
| 118M 0605y to 118M 1045y | Millstone Grit Group - Mudstone, Siltstone and Sandstone | ||
| 118M 1045y to 119M 0055y | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ | ||
| 119M 0055y to 119M 0275y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 119M 0275y to 119M 1045y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 119M 1045y to 120M 0605y | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete | ||
| 120M 0605y to 122M 1265y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 122M 1265y to 122M 1595y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 122M 1595y to 124M 0605y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 124M 0605y to 124M 0825y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 124M 0825y to 125M 0605y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 125M 0605y to 125M 0935y | Sand and Gravel | River Terrace Deposits Ⓤ | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 125M 0935y to 125M 1485y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 125M 1485y to 127M 0021y | Sand and Gravel | River Terrace Deposits Ⓤ | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |