Geology for ELR BKS 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 |
|---|---|---|---|
| 0M -019y to 0M 0495y | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 0M 0495y to 1M 1265y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 1M 1265y to 2M 1155y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 2M 1155y to 6M 0275y | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete | ||
| 6M 0275y to 7M 0605y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 7M 0605y to 7M 0935y | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete | ||
| 7M 0935y to 8M 0165y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 8M 0165y to 8M 0275y | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 8M 0275y to 9M 1485y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 9M 1485y to 10M 1265y | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 10M 1265y to 11M 0935y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 11M 0935y to 11M 1485y | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 11M 1485y to 12M 0385y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 12M 0385y to 12M 0605y | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 12M 0605y to 12M 1595y | Diamicton | Till | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 12M 1595y to 13M 0275y | Diamicton | Till | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 13M 0275y to 13M 0495y | Diamicton | Till | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 13M 0495y to 13M 1705y | Diamicton | Till | Zechstein Group - Dolomitised Limestone and Dolomite |
| 13M 1705y to 14M 0055y | Clay, Silt and Sand | Alluvium | Zechstein Group - Dolomitised Limestone and Dolomite |
| 14M 0055y to 14M 0715y | Clay, Silt and Sand | Alluvium | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 14M 0715y to 15M 1705y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 15M 1705y to 17M 0275y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 17M 0275y to 18M 0715y | Clay | Lacustrine Deposits Ⓤ | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 18M 0715y to 19M 0055y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 19M 0055y to 20M 1284y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |