Geology for ELR HAY1 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.

MileageMaterialDepositBedrock
1M 0937y to 3M 1265ySand and GravelGlacial Sand and GravelTriassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded
3M 1265y to 7M 0935yClayLacustrine Deposits ⓊTriassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded
7M 0935y to 7M 1595yClay, Silt and SandAlluviumTriassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded
7M 1595y to 8M 1155yClayLacustrine Deposits ⓊTriassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded
8M 1155y to 12M 1375yDiamictonTillTriassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded
12M 1375y to 13M 0165yClayLacustrine Deposits ⓊTriassic Rocks Ⓤ - Sandstone and Conglomerate, Interbedded
13M 0165y to 13M 0715yClayLacustrine Deposits ⓊPermian Rocks Ⓤ - Mudstone, Siltstone and Sandstone
13M 0715y to 14M 0165yDiamictonTillPermian Rocks Ⓤ - Mudstone, Siltstone and Sandstone
14M 0165y to 14M 1375yDiamictonTillZechstein Group - Dolomitised Limestone and Dolomite
14M 1375y to 15M 1595yDiamictonTillPermian Rocks Ⓤ - Mudstone, Siltstone and Sandstone
15M 1595y to 16M 0385yDiamictonTillZechstein Group - Dolomitised Limestone and Dolomite
16M 0385y to 16M 0825yDiamictonTillPermian Rocks Ⓤ - Mudstone, Siltstone and Sandstone
16M 0825y to 16M 1265yDiamictonTillZechstein Group - Dolomitised Limestone and Dolomite
16M 1265y to 16M 1375yZechstein Group - Dolomitised Limestone and Dolomite
16M 1375y to 17M 0055yPermian Rocks Ⓤ - Mudstone, Siltstone and Sandstone
17M 0055y to 17M 0275yZechstein Group - Dolomitised Limestone and Dolomite
17M 0275y to 17M 0495yDiamictonTillZechstein Group - Dolomitised Limestone and Dolomite
17M 0495y to 17M 1595yDiamictonTillPermian Rocks Ⓤ - Mudstone, Siltstone and Sandstone
17M 1595y to 18M 1324yDiamictonTillMillstone Grit Group - Mudstone, Siltstone and Sandstone