See detailed information for ELR DOL1
⚠️ 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 |
|---|---|---|---|
| 155M 1549y to 156M 0055y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 156M 0055y to 157M 0495y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 157M 0495y to 157M 1045y | Clay | Lacustrine Deposits Ⓤ | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 157M 1045y to 160M 0495y | Clay | Lacustrine Deposits Ⓤ | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 160M 0495y to 160M 0715y | Clay | Lacustrine Deposits Ⓤ | Zechstein Group - Dolomitised Limestone and Dolomite |
| 160M 0715y to 161M 0935y | Clay | Lacustrine Deposits Ⓤ | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 161M 0935y to 161M 1155y | Clay | Lacustrine Deposits Ⓤ | Zechstein Group - Dolomitised Limestone and Dolomite |
| 161M 1155y to 163M 0165y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 163M 0165y to 165M 0165y | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricre | ||
| 165M 0165y to 166M 0495y | Clay, Silt and Sand | Alluvium | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricre |
| 166M 0495y to 169M 1705y | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricre | ||
| 169M 1705y to 172M 0935y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 172M 0935y to 174M 0165y | Clay, Silt and Sand | Alluvium | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |
| 174M 0165y to 174M 0935y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 174M 0935y to 175M 0722y | Clay, Silt and Sand | Alluvium | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |