See detailed information for ELR BTH2
⚠️ 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 |
|---|---|---|---|
| 14M 1446y to 16M 1375y | White Chalk Subgroup - Chalk | ||
| 16M 1375y to 17M 0385y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 17M 0385y to 17M 1265y | White Chalk Subgroup - Chalk | ||
| 17M 1265y to 18M 0825y | Thanet Sand Formation - Sand, Silt and Clay | ||
| 18M 0825y to 18M 0935y | Lambeth Group - Clay, Silt, Sand and Gravel | ||
| 18M 0935y to 18M 1485y | Sand and Gravel | River Terrace Deposits Ⓤ | Lambeth Group - Clay, Silt, Sand and Gravel |
| 18M 1485y to 19M 0002y | Sand and Gravel | River Terrace Deposits Ⓤ | Thames Group - Clay, Silt, Sand and Gravel |