Salisbury Plain

Salisbury Plain supports the largest known expanse of unimproved chalk downland in north west Europe, and represents 41% of Britain's remaining area of this rich wildlife habitat.

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Porton Down

Porton Down is an extensive area of grassland, scrub and woodland on the Wiltshire-Hampshire border.

It constitutes one of the largest uninterrupted tracts of semi-natural chalk grassland in Britain, a habitat which has declined by more than 80% in the last 50 years, largely through agricultural intensification.

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Parsonage Down

Parsonage Down is one of the most outstanding chalk downland sites in Britain. Situated on the Upper Chalk of the southern edge of Salisbury Plain, the site is of particular interest as an extensive area of flat and gently sloping land, much of which has escaped ploughing and other agricultural improvement during the last 100 years.

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Pewsey Downs

Pewsey Downs covers an extensive chalk downland scarp which supports an extremely rich chalk grassland flora and an outstanding butterfly fauna. On the escarpment top is a small ancient oak-ash-maple wood with uncommon stand types.

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