See detailed information for ELR TBH2
⚠️ 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 |
|---|---|---|---|
| 18M 1742y to 19M 0715y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 19M 0715y to 19M 1265y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 19M 1265y to 19M 1375y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 19M 1375y to 20M 0495y | Silt | Brickearth | White Chalk Subgroup - Chalk |
| 20M 0495y to 20M 0935y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | White Chalk Subgroup - Chalk |
| 20M 0935y to 20M 1705y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Lambeth Group - Clay, Silt, Sand and Gravel |
| 20M 1705y to 21M 0165y | Silt | Brickearth | Lambeth Group - Clay, Silt, Sand and Gravel |
| 21M 0165y to 23M 0055y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 23M 0055y to 24M 1265y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Thames Group - Clay, Silt, Sand and Gravel |
| 24M 1265y to 25M 1265y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 25M 1265y to 28M 0605y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Thames Group - Clay, Silt, Sand and Gravel |
| 28M 0605y to 29M 1705y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Lambeth Group - Clay, Silt, Sand and Gravel |
| 29M 1705y to 30M 0385y | Silt | Brickearth | Lambeth Group - Clay, Silt, Sand and Gravel |
| 30M 0385y to 30M 1375y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 30M 1375y to 31M 0825y | Silt | Brickearth | Lambeth Group - Clay, Silt, Sand and Gravel |
| 31M 0825y to 36M 1375y | Silt | Brickearth | Thames Group - Clay, Silt, Sand and Gravel |
| 36M 1375y to 37M 0561y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | Thames Group - Clay, Silt, Sand and Gravel |