Prescombe Down (grid reference ST985255 ) is a biological Site of Special Scientific Interest in Wiltshire, notified in 1951.
Coordinates: 51°01′44″N2°01′22″W / 51.02886°N 2.02276°W
Winterbourne Railway Cutting is a 1.99 hectare geological Site of Special Scientific Interest near the village of Winterbourne, South Gloucestershire, notified in 1990.
Upton Coombe is a 7.4 hectare biological Site of Special Scientific Interest near the village of Hawkesbury Upton, South Gloucestershire, notified in 1989.
Stanton St. Quintin Quarry & Motorway Cutting is a 2.2 hectare geological Site of Special Scientific Interest southeast of Stanton St Quintin in Wiltshire, England, notified in 1971.
Westbury Ironstone Quarry is a 5,600 square metre geological Site of Special Scientific Interest just west of Westbury in Wiltshire, England, notified in 1965. The quarry was once an important source of Upper Oxfordian Westbury Iron Ore.
Scratchbury & Cotley Hills SSSI is a 53.5 hectare biological Site of Special Scientific Interest at Norton Bavant in Wiltshire, England, notified in 1951. The Iron Age hillfort of Scratchbury Camp occupies the summit of the hill.
Upton Cow Down is a 16.4 hectare biological Site of Special Scientific Interest in Wiltshire. The down is an area of chalk grassland on the western edge of Salisbury Plain. It lies one mile south of the town of Westbury, above the village of Upton Scudamore.
West Yatton Down is a 14.4 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1971.
Stratford Toney Down is a 23.1 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1987.
Steeple Langford Down is a 21.75 hectare biological Site of Special Scientific Interest at Steeple Langford in Wiltshire, notified in 1971.
Tytherington Down is a 5.9 hectares biological Site of Special Scientific Interest in Wiltshire, England, notified in 1975. The site spans a dry valley some 1+1⁄2 miles (2.4 km) south of the village of Tytherington and 5 miles (8 km) southeast of Warminster.
Sutton Lane Meadows is a 3.44 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1988.
Whiteparish Common is a 64.5 hectare biological Site of Special Scientific Interest near Whiteparish, Wiltshire, England, notified in 1965.
Wylye and Church Dean Downs is an 80.9 hectare biological Site of Special Scientific Interest in Wiltshire, England, notified in 1951.
Roundway Down and Covert is an 86 hectare biological Site of Special Scientific Interest near Devizes in Wiltshire, England. It was notified in 1971.
Cloatley Manor Farm Meadows is a 12.1 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1997.
Stockton Wood and Down is a 61.5 hectare biological Site of Special Scientific Interest in the southwest of Stockton parish in Wiltshire, England, notified in 1951.
Starveall and Stony Down is a 22.5 hectare biological Site of Special Scientific Interest in the parishes of Codford and Wylye, Wiltshire, England, notified in 1971.
Rack Hill is a 10.6 hectare biological Site of Special Scientific Interest in Wiltshire, notified in 1975.
Bryanston SSSI is a 0.3 hectare biological Site of Special Scientific Interest in Dorset, England notified in 1977.
Old Burghclere Lime Quarry SSSI is a 4.61 ha biological Site of Special Scientific Interest at Burghclere in Hampshire, notified in 1979. The Lime Quarry was actively worked until the beginning of the 20th century, and since then has been left to nature, resulting in a unique mix of flora and fauna becoming established at the site.