See detailed information for ELR BML1

 ⚠️ 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
0M -001y to 1M 0385yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
1M 0385y to 1M 1155ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
1M 1155y to 2M 0825yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
2M 0825y to 5M 1375ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
5M 1375y to 6M 0275yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
6M 0275y to 6M 1045ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
6M 1045y to 9M 0165yThames Group - Clay, Silt, Sand and Gravel
9M 0165y to 11M 1155ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
11M 1155y to 12M 0165yThames Group - Clay, Silt, Sand and Gravel
12M 0165y to 12M 0715yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
12M 0715y to 13M 0055ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
13M 0055y to 13M 0715yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
13M 0715y to 15M 0165ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
15M 0165y to 15M 1045yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
15M 1045y to 17M 0275ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
17M 0275y to 18M 1705ySand and GravelRiver Terrace Deposits ⓊBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
18M 1705y to 19M 0275yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
19M 0275y to 19M 0935ySand and GravelRiver Terrace Deposits ⓊBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
19M 0935y to 20M 0055yClay, Silt and SandAlluviumBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
20M 0055y to 21M 1705ySand and GravelRiver Terrace Deposits ⓊBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
21M 1705y to 29M 1595yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
29M 1595y to 30M 0385ySand and GravelSand and Gravel of Uncertain Age and OriginBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
30M 0385y to 30M 0715yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
30M 0715y to 30M 1485ySand and GravelSand and Gravel of Uncertain Age and OriginBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
30M 1485y to 31M 0055yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
31M 0055y to 31M 0825ySand and GravelSand and Gravel of Uncertain Age and OriginBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
31M 0825y to 32M 0055yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
32M 0055y to 32M 0605ySand and GravelRiver Terrace Deposits ⓊBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
32M 0605y to 32M 1265yClay, Silt and SandAlluviumBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
32M 1265y to 38M 1155yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
38M 1155y to 39M 0605yClay, Silt and SandAlluviumBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
39M 0605y to 41M 0165yBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
41M 0165y to 41M 0385yThames Group - Clay, Silt, Sand and Gravel
41M 0385y to 41M 0825yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
41M 0825y to 45M 0935yThames Group - Clay, Silt, Sand and Gravel
45M 0935y to 45M 1485yLambeth Group - Clay, Silt, Sand and Gravel
45M 1485y to 46M 0055yClay, Silt and SandAlluviumLambeth Group - Clay, Silt, Sand and Gravel
46M 0055y to 46M 0165yClay, Silt and SandAlluviumWhite Chalk Subgroup - Chalk
46M 0165y to 51M 0605yWhite Chalk Subgroup - Chalk
51M 0605y to 51M 1485yDiamictonClay-with-flintsWhite Chalk Subgroup - Chalk
51M 1485y to 52M 0055yWhite Chalk Subgroup - Chalk
52M 0055y to 52M 0825yDiamictonClay-with-flintsWhite Chalk Subgroup - Chalk
52M 0825y to 70M 1705yWhite Chalk Subgroup - Chalk
70M 1705y to 71M 0715yLambeth Group - Clay, Silt, Sand and Gravel
71M 0715y to 71M 1705yThames Group - Clay, Silt, Sand and Gravel
71M 1705y to 72M 0495yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
72M 0495y to 72M 1155yThames Group - Clay, Silt, Sand and Gravel
72M 1155y to 73M 0165yClay, Silt and SandAlluviumThames Group - Clay, Silt, Sand and Gravel
73M 0165y to 73M 1045ySiltBrickearthBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
73M 1045y to 74M 1155ySiltBrickearthThames Group - Clay, Silt, Sand and Gravel
74M 1155y to 75M 1265ySand and GravelRiver Terrace Deposits ⓊThames Group - Clay, Silt, Sand and Gravel
75M 1265y to 76M 1375yThames Group - Clay, Silt, Sand and Gravel
76M 1375y to 76M 1595ySand and GravelSand and Gravel of Uncertain Age and OriginThames Group - Clay, Silt, Sand and Gravel
76M 1595y to 77M 0385ySand and GravelSand and Gravel of Uncertain Age and OriginBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay
77M 0385y to 77M 1045ySand and GravelSand and Gravel of Uncertain Age and Origin
77M 1045y to 77M 1687yClay, Silt and SandAlluviumBracklesham Group and Barton Group Ⓤ - Sand, Silt and Clay