See detailed information for ELR AHG

 ⚠️ 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
1M 1691y to 2M 0825yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
2M 0825y to 2M 1097ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel