Alconbury Weald

This area of higher ground forming a dissected west-east aligned ridge in the central part of the county between the River Great Ouse Valley to the south and Fen Edge to the northeast. It also extends as a narrow ridge towards the northwest, bordering Northamptonshire and lying between the Woodwalton Apron to the east and the Woolley Apron to the south. It is underlain by an appreciable thickness of Oadby Glacial Till, which overlies Jurassic Oxford Clay bedrock producing heavy, poorly drained soils. There are also patches of Glacio-fluvial & Terrace Deposits. This fragmented plateau reaches above 40m OD.

There are no geological SSSI or LGS. Monks Wood, southwest of Woodwalton village, is a NNR.

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