Geology for ELR NEK 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 -018y to 0M 0165y | Diamicton | Till | Zechstein Group - Dolomitised Limestone and Dolomite |
| 0M 0165y to 0M 1045y | Clay | Lacustrine Deposits Ⓤ | Zechstein Group - Dolomitised Limestone and Dolomite |
| 0M 1045y to 1M 0825y | Diamicton | Till | Zechstein Group - Dolomitised Limestone and Dolomite |
| 1M 0825y to 1M 1155y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 1M 1155y to 1M 1595y | Clay, Silt and Sand | Alluvium | Zechstein Group - Dolomitised Limestone and Dolomite |
| 1M 1595y to 2M 0275y | Clay, Silt and Sand | Alluvium | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 2M 0275y to 2M 0385y | Clay, Silt and Sand | Alluvium | Pennine Upper Coal Measures Formation - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete |
| 2M 0385y to 2M 0825y | Clay, Silt and Sand | Alluvium | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 2M 0825y to 2M 1485y | Clay, Silt and Sand | Alluvium | Zechstein Group - Dolomitised Limestone and Dolomite |
| 2M 1485y to 3M 0275y | Diamicton | Till | Zechstein Group - Dolomitised Limestone and Dolomite |
| 3M 0275y to 3M 0451y | Diamicton | Till | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |