See detailed information for ELR NAJ3
⚠️ 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 -037y to 1M 1265y | Corallian Group - Limestone, Sandstone, Siltstone and Mudstone | ||
| 1M 1265y to 1M 1705y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone | ||
| 1M 1705y to 2M 0605y | Corallian Group - Limestone, Sandstone, Siltstone and Mudstone | ||
| 2M 0605y to 2M 1595y | West Walton Formation, Ampthill Clay Formation and Kimmeridge Clay Formation Ⓤ - Mudstone | ||
| 2M 1595y to 6M 1485y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 6M 1485y to 7M 0055y | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks | ||
| 7M 0055y to 8M 1485y | Kellaways Formation and Oxford Clay Formation Ⓤ - Mudstone, Siltstone and Sandstone | ||
| 8M 1485y to 15M 1155y | Great Oolite Group - Sandstone, Limestone and Argillaceous Rocks | ||
| 15M 1155y to 15M 1485y | Inferior Oolite Group - Limestone, Sandstone, Siltstone and Mudstone | ||
| 15M 1485y to 18M 0385y | Lias Group - Mudstone, Siltstone, Limestone and Sandstone | ||
| 18M 0385y to 18M 0710y | Clay, Silt and Sand | Alluvium | Lias Group - Mudstone, Siltstone, Limestone and Sandstone |