GLA 22: Keston Common

GLA 22: Keston Common, Recommended RIGS
London Borough of Bromley, TQ 417 639
Ownership: Local Authority. Public open space.

Keston Common displays small exposures of Harwich Formation within its woodland. The south east side of the site is a long former gravel pit in the Harwich Formation. The north east side is marked by two ponds, the higher of which is marked by a spring engineered in brick as “Caesar’s Well”. A site much frequented by Charles Darwin.

The ponds are immediately outside the LF map as is Keston Sphagnum Bog. An information board on the site shows the geology of this bog. Shallow diggings occasionally reveal Lambeth Group clays. The London Loop runs along the east side of the common (


Burnham,C.P. & McRae, S.G. 1974. The Relationship of Soil Formation to Geology in an Area South-East of London. Proceedings Geologists’ Association 85 pp. 79 – 92.

Lovis, J.D. 1951. A preliminary account of the ponds and bog on Keston Common, Kent. Proceedings Croydon Natural History and Scientific Society XII pp 60 - 68

Harwich Formation exposure
Source: London’s foundations, page 156


Site Map OS Topography © Crown Copyright
Source: London’s foundations, page 155

gla22 map

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