Twyford Wood is an interesting ancient woodland site. The wood was a second world war airfield, RAF North Witham, and still retains many military artefacts, including the wide open runways and the derelict control tower. After the war the airfield part of the wood was planted with oak and conifer trees. The grassland areas are home to a regionally important colony of dingy and grizzled skipper butterflies. The butterfly reserves are managed by the Lincolnshire Branch of Butterfly Conservation. The wood has a small car park.
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