Geology for ELR HIM 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 |
|---|---|---|---|
| 9M 1570y to 10M 0605y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 10M 0605y to 10M 1375y | Permian Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 10M 1375y to 11M 0605y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 11M 0605y to 11M 1265y | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 11M 1265y to 11M 1705y | Zechstein Group - Dolomitised Limestone and Dolomite | ||
| 11M 1705y to 12M 0055y | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 12M 0055y to 12M 0385y | Clay, Silt and Sand | Alluvium | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 12M 0385y to 12M 1595y | Permian Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 12M 1595y to 17M 0055y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 17M 0055y to 18M 0495y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 18M 0495y to 19M 1045y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 19M 1045y to 19M 1155y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 19M 1155y to 20M 0275y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 20M 0275y to 28M 1155y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 28M 1155y to 28M 1595y | Sand and Gravel | River Terrace Deposits Ⓤ | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 28M 1595y to 29M 0034y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |