See detailed information for ELR CNW
⚠️ 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 -088y to 0M 0055y | Clay, Silt and Sand | Alluvium | Arenig Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 0M 0055y to 0M 0385y | Clay, Silt and Sand | Alluvium | Llanvirn Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 0M 0385y to 0M 0495y | Clay, Silt and Sand | Alluvium | Arenig Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 0M 0495y to 0M 1265y | Sand and Gravel | Glacial Sand and Gravel | Arenig Rocks Ⓤ - Mudstone, Siltstone and Sandstone |
| 0M 1265y to 0M 1355y | Sand and Gravel | Glacial Sand and Gravel | |
| 0M 1355y to 0M 1390y | Sand and Gravel | Glacial Sand and Gravel | Arenig Rocks Ⓤ - Mudstone, Siltstone and Sandstone |