See detailed information for ELR HHH

 ⚠️ 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
0M 0504y to 0M 0715ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
0M 0715y to 0M 0825ySand and GravelRiver Terrace Deposits Ⓤ
0M 0825y to 0M 0935y
0M 0935y to 0M 1155yThames Group - Clay, Silt, Sand and Gravel
0M 1155y to 1M 0385yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
1M 0385y to 2M 0165ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
2M 0165y to 2M 1375ySand and GravelRiver Terrace Deposits ⓊLambeth Group - Clay, Silt, Sand and Gravel
2M 1375y to 4M 0605ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
4M 0605y to 4M 1011yThames Group - Clay, Silt, Sand and Gravel
4M 1011y to 4M 1033yLambeth Group - Clay, Silt, Sand and Gravel