See detailed information for ELR SMJ1

 ⚠️ 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
166M 1193y to 168M 0275yPennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ
168M 0275y to 168M 1409yClay, Silt and SandAlluviumPennine Middle Coal Measures Formation and South Wales Middle Coal Measures Formation Ⓤ