See detailed information for ELR BAE1
⚠️ 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 |
|---|---|---|---|
| 50M 0285y to 51M 1705y | White Chalk Subgroup - Chalk | ||
| 51M 1705y to 52M 0495y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 52M 0495y to 58M 0495y | White Chalk Subgroup - Chalk | ||
| 58M 0495y to 58M 0935y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 58M 0935y to 59M 0605y | White Chalk Subgroup - Chalk | ||
| 59M 0605y to 61M 0605y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 61M 0605y to 61M 0715y | White Chalk Subgroup - Chalk | ||
| 61M 0715y to 61M 1045y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 61M 1045y to 65M 1705y | White Chalk Subgroup - Chalk | ||
| 65M 1705y to 66M 0385y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 66M 0385y to 70M 1045y | White Chalk Subgroup - Chalk | ||
| 70M 1045y to 71M 0495y | Diamicton | Clay-with-flints | White Chalk Subgroup - Chalk |
| 71M 0495y to 77M 1265y | White Chalk Subgroup - Chalk | ||
| 77M 1265y to 77M 1375y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 77M 1375y to 79M 0275y | White Chalk Subgroup - Chalk | ||
| 79M 0275y to 80M 1375y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 80M 1375y to 81M 0935y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 81M 0935y to 82M 0605y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 82M 0605y to 82M 0825y | White Chalk Subgroup - Chalk | ||
| 82M 0825y to 82M 1155y | Sand and Gravel | Sand and Gravel of Uncertain Age and Origin | White Chalk Subgroup - Chalk |
| 82M 1155y to 82M 1375y | White Chalk Subgroup - Chalk | ||
| 82M 1375y to 83M 0275y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |
| 83M 0275y to 83M 0715y | Clay, Silt and Sand | Alluvium | White Chalk Subgroup - Chalk |
| 83M 0715y to 83M 1586y | Sand and Gravel | River Terrace Deposits Ⓤ | White Chalk Subgroup - Chalk |