Walmore Common is a 57.78-hectare (142.8-acre) nature reserve on the flood-plain of the River Severn, west of the city of Gloucester in England and north of the village of Chaxhill. It was notified as a biological Site of Special Scientific Interest in 1966. The site is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS).
The Cotswold Water Park is the United Kingdom's largest marl lake system, straddling the Wiltshire–Gloucestershire border, north-west of Cricklade and south of Cirencester. There are 180 lakes, spread over 42 square miles (110 km2).
Aire Point to Carrick Du SSSI is a Site of Special Scientific Interest on the Penwith Peninsula, Cornwall, England. It is 5.98 square kilometres in extent, stretching from grid reference SW360279 to grid reference SW513410. The site is designated both for its biological and its geological interest.
Browne's Folly or Brown's Folly is a folly tower sitting within a 39.9 hectare biological and geological Site of Special Scientific Interest (SSSI) near the village of Bathford in Somerset, notified in 1974: the site itself is known as the Farleigh Down Stone Quarry, and is managed as a nature reserve by the Avon Wildlife Trust (AWT). The tower was built in 1848 and is a Grade II listed building.
Littledean Hall is a country house in the village of Littledean, Gloucestershire, England. It has been described as one of the most haunted houses in England and is thought to be the oldest house in the United Kingdom which is still occupied. Saxon and Celtic remains have been uncovered in the cellars. Part of the house is designated an SSSI as it is a proven breeding roost for the Greater Horseshoe Bat (Rhinolophus ferrumequinum).
The Perch is a 72.1 hectare biological Site of Special Scientific Interest close to Cheddar Gorge in the Mendip Hills, Somerset, England. It received SSSI notification in 1990.
Chilmark Quarries is a 9.65 hectare biological and geological Site of Special Scientific Interest (SSSI), in the ravine south of the village of Chilmark in Wiltshire, England.
Box Mine is a 56.6 ha biological Site of Special Scientific Interest, near the village of Box in Wiltshire, England, notified in 1991.
Winsley Mines is a 1.48 hectare biological Site of Special Scientific Interest, near the village of Winsley in Wiltshire, England, notified in 1989.
Sylvan House Barn is a 0.005-hectare (0.012-acre) stone built barn near the village of St Briavels, in the Forest of Dean, Gloucestershire. Because of its breeding bats, the site was notified as a biological Site of Special Scientific Interest in 1995.
Salmonsbury Meadows is an 18-hectare (44-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1985. The site is listed in the 'Cotswold District' Local Plan 2001-2011 as a Key Wildlife Site (KWS).
Blaisdon Hall is a Grade II* listed building at Blaisdon. It includes a 0.07-hectare (0.17-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1995.
Buckshaft Mine & Bradley Hill Railway Tunnel is a 5.66-hectare (14.0-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1998. This site comprises two separate locations. One is Buckshaft Mine which is near the village of Ruspidge. The other location is Bradley Hill Railway Tunnel which is near the village of Soudley.
Caerwood And Ashberry Goose House is a 0.01-hectare (0.025-acre) biological Site of Special Scientific Interest in Gloucestershire, England, notified in 1991. The site was previously notified as Caerwood, Tidenham and lies within the Wye Valley Area of Outstanding Natural Beauty.
Old Bow And Old Ham Mines is a 40.3-hectare (100-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1998.
Upham Meadow and Summer Leasow is a 104.0-hectare (257-acre) biological Site of Special Scientific Interest on the border between Gloucestershire and Herefordshire & Worcestershire, at Twyning and near Bredon, notified in 1991.
Westbury Brook Ironstone Mine is a 15.69-hectare (38.8-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1998.
Wigpool Ironstone Mine is a 34.88-hectare (86.2-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1998.
Hack Fall Wood, otherwise known as Hackfall, is a Site of Special Scientific Interest, or SSSI, of 44.8687 hectares, lying north-east of the village of Grewelthorpe, North Yorkshire, England. During the 18th century it was landscaped in the picturesque style by landowner William Aislabie, who created views by engineering streams and pools, planting trees and building follies. J. M. W. Turner and William Sawrey Gilpin painted it, and pictures of it featured on Catherine the Great's 1773 Wedgwood dinner service. Some 19th century writers called it "one of the most beautiful woods in the country."