Geology for ELR AYR1 is based on British Geological Survey (BGS) low-resolution data sampled at 100 metre intervals along the ELR. The geology presented should not be treated as accurate or complete. Data marked with Ⓤ is classed as undifferentiated by the BGS.
| Mileage | Material | Deposit | Bedrock |
|---|---|---|---|
| 0M -120y to 0M 1595y | Clay, Silt and Sand | Alluvium | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 0M 1595y to 1M 0165y | Clay, Silt and Sand | Alluvium | Scottish Coal Measures Group - Mudstone, Siltstone, Sandstone, Coal, Ironstone and Ferricrete |
| 1M 0165y to 1M 0715y | Clay, Silt and Sand | Alluvium | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 1M 0715y to 2M 0825y | Sand and Gravel | Raised Marine Deposits Ⓤ | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 2M 0825y to 2M 1045y | Clay, Silt and Sand | Alluvium | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 2M 1045y to 4M 0055y | Sand and Gravel | Raised Marine Deposits Ⓤ | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 4M 0055y to 4M 0605y | Clay, Silt and Sand | Alluvium | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 4M 0605y to 4M 1595y | Sand and Gravel | Raised Marine Deposits Ⓤ | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 4M 1595y to 5M 0385y | Diamicton | Till | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 5M 0385y to 5M 1045y | Sand and Gravel | Raised Marine Deposits Ⓤ | Clackmannan Group - Sedimentary Rock Cycles, Clackmannan Group Type |
| 5M 1045y to 6M 1187y | Sand and Gravel | Raised Marine Deposits Ⓤ | Strathclyde Group - Sedimentary Rock Cycles, Strathclyde Group Type |