See detailed information for ELR ESK

 ⚠️ 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.

MileageMaterialDepositBedrock
69M 0841y to 69M 1265yClay, Silt and SandAlluviumWhite Chalk Subgroup - Chalk
69M 1265y to 69M 1595ySand and GravelRiver Terrace Deposits ⓊWhite Chalk Subgroup - Chalk
69M 1595y to 70M 0825yDiamictonTillWhite Chalk Subgroup - Chalk
70M 0825y to 70M 1705yDiamictonTillLambeth Group - Clay, Silt, Sand and Gravel
70M 1705y to 72M 0605yDiamictonTillThames Group - Clay, Silt, Sand and Gravel
72M 0605y to 73M 1155ySand and GravelGlacial Sand and GravelThames Group - Clay, Silt, Sand and Gravel
73M 1155y to 73M 1595yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
73M 1595y to 74M 0275yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
74M 0275y to 75M 0605ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
75M 0605y to 75M 0825yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
75M 0825y to 75M 1265ySand and GravelGlacial Sand and GravelThames Group - Clay, Silt, Sand and Gravel
75M 1265y to 76M 0825ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
76M 0825y to 78M 1045ySand and GravelGlacial Sand and GravelThames Group - Clay, Silt, Sand and Gravel
78M 1045y to 79M 0935ySand and GravelCrag GroupThames Group - Clay, Silt, Sand and Gravel
79M 0935y to 79M 1595yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
79M 1595y to 79M 1705yClay, Silt and SandAlluvium
79M 1705y to 80M 0165yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
80M 0165y to 80M 0385yClay, Silt and SandAlluvium
80M 0385y to 80M 1485ySand and GravelCrag GroupThames Group - Clay, Silt, Sand and Gravel
80M 1485y to 81M 1375yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
81M 1375y to 82M 0275ySand and GravelCrag GroupThames Group - Clay, Silt, Sand and Gravel
82M 0275y to 82M 1265ySand and GravelCrag GroupNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
82M 1265y to 83M 0055ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
83M 0055y to 83M 0495ySand and GravelCrag GroupNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
83M 0495y to 83M 0605yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
83M 0605y to 83M 0935yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
83M 0935y to 83M 1155ySand and GravelCrag GroupThames Group - Clay, Silt, Sand and Gravel
83M 1155y to 84M 0055ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
84M 0055y to 84M 0935yDiamictonTillNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
84M 0935y to 87M 0055ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
87M 0055y to 88M 0055yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
88M 0055y to 88M 1045ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
88M 1045y to 89M 1045yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
89M 1045y to 94M 0935yDiamictonTillNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
94M 0935y to 95M 0715ySand and GravelCrag GroupNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
95M 0715y to 99M 0605yDiamictonTillNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
99M 0605y to 99M 0935ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
99M 0935y to 99M 1705ySand and GravelCrag GroupNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
99M 1705y to 100M 1155ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
100M 1155y to 104M 0935yDiamictonTillNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
104M 0935y to 104M 1155ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
104M 1155y to 106M 0495yDiamictonTillNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
106M 0495y to 106M 1265ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
106M 1265y to 107M 1045yDiamictonTillNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
107M 1045y to 108M 1375ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
108M 1375y to 115M 0385yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
115M 0385y to 115M 1155yNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
115M 1155y to 115M 1485yClay, Silt and SandAlluviumNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
115M 1485y to 115M 1705ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
115M 1705y to 116M 0055ySand and GravelGlacial Sand and Gravel
116M 0055y to 116M 0590ySand and GravelGlacial Sand and GravelNeogene to Quaternary Rocks Ⓤ - Gravel, Sand, Silt and Clay
116M 0590y to 116M 0631ySand and GravelGlacial Sand and Gravel