See detailed information for ELR DOW
⚠️ 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 |
|---|---|---|---|
| 0M -026y to 2M 0715y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 2M 0715y to 2M 0825y | Clay | Lacustrine Deposits Ⓤ | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 2M 0825y to 3M 0055y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 3M 0055y to 3M 0935y | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded | ||
| 3M 0935y to 4M 1375y | Sand and Gravel | River Terrace Deposits Ⓤ | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 4M 1375y to 5M 0275y | Peat | Peat | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 5M 0275y to 6M 0495y | Sand and Gravel | River Terrace Deposits Ⓤ | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 6M 0495y to 9M 0825y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 9M 0825y to 9M 1265y | Sand and Gravel | Glacial Sand and Gravel | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 9M 1265y to 10M 1155y | Clay | Lacustrine Deposits Ⓤ | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 10M 1155y to 12M 0605y | Peat | Peat | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 12M 0605y to 13M 0055y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded |
| 13M 0055y to 13M 1705y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 13M 1705y to 14M 1375y | Sand | Blown Sand | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 14M 1375y to 15M 0715y | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 15M 0715y to 15M 1485y | Sand | Blown Sand | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 15M 1485y to 21M 0715y | Clay, Silt and Sand | Alluvium | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 21M 0715y to 21M 1045y | Sand | Blown Sand | Triassic Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 21M 1045y to 22M 0055y | Sand | Blown Sand | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 22M 0055y to 22M 1705y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 22M 1705y to 23M 0715y | Sand | Blown Sand | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 23M 0715y to 24M 1595y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 24M 1595y to 26M 0275y | Sand | Blown Sand | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |
| 26M 0275y to 27M 1375y | Sand | Blown Sand | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks |
| 27M 1375y to 28M 0055y | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks | ||
| 28M 0055y to 28M 0165y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 28M 0165y to 29M 0935y | Clay, Silt and Sand | Alluvium | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone |
| 29M 0935y to 30M 1595y | Clay, Silt and Sand | Alluvium | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone |
| 30M 1595y to 32M 0715y | Sand | Blown Sand | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone |
| 32M 0715y to 32M 1375y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone | ||
| 32M 1375y to 32M 1705y | Sand | Blown Sand | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone |
| 32M 1705y to 33M 0605y | Clay | Lacustrine Deposits Ⓤ | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone |
| 33M 0605y to 33M 0930y | Sand | Blown Sand | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone |