Geology for ELR WKL2 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 |
|---|---|---|---|
| 19M 0175y to 19M 0495y | Diamicton | Till | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |
| 19M 0495y to 19M 0935y | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ | ||
| 19M 0935y to 20M 0055y | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ | ||
| 20M 0055y to 22M 0275y | Diamicton | Till | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 22M 0275y to 22M 1265y | Diamicton | Till | Millstone Grit Group - Mudstone, Siltstone and Sandstone |
| 22M 1265y to 23M 0055y | Diamicton | Till | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |
| 23M 0055y to 23M 0385y | Diamicton | Till | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 23M 0385y to 23M 1155y | Peat | Peat | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 23M 1155y to 23M 1265y | Peat | Peat | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |
| 23M 1265y to 24M 0275y | Peat | Peat | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 24M 0275y to 25M 1045y | Sand | Blown Sand | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 25M 1045y to 25M 1375y | Peat | Peat | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 25M 1375y to 25M 1485y | Peat | Peat | Pennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ |
| 25M 1485y to 26M 0165y | Peat | Peat | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 26M 0165y to 26M 1155y | Sand | Blown Sand | Pennine Lower Coal Measures Formation and South Wales Lower Coal Measures Formation Ⓤ |
| 26M 1155y to 28M 1705y | Sand | Blown Sand | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 28M 1705y to 29M 0905y | Diamicton | Till | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |