See detailed information for ELR SEY

 ⚠️ 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.

MileageMaterialDepositBedrock
151M 1728y to 152M 0495yClay, Silt and SandAlluviumPennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ
152M 0495y to 152M 1647yPennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ