Rising over 900 feet above the surrounding landscape Liddington Hill is a prominent feature, visible for miles around. The clump of beach trees on the eastern side is particularly noticeable, providing a distant marker for local travellers from as far away as the Cotswolds. The western side is topped with an Iron Age hill fort, first occupied in the 7th century BC. A popular belief is that the hill fort is the site of "Mons Badonicus" or Mount Badon, where King Arthur is said to have defeated the Anglo-Saxon armies.

During World War II a "Starfish Decoy Control Bunker" was erected near the beach trees. The purpose of the construction was to create localised fires which would fool enemy bombers and hopefully prevent them from targeting nearby Swindon. The bunker is still there today and in a good state of preservation.

Liddington Hill is well known to Wiltshire birders for its regular annual passage of the scarce Ring Ouzel. Numbers vary from year to year, with up to a dozen birds being recorded in favourable years. Other regular migrants such as Whinchat and Wheatear can often be seen there during Spring and Autumn. Raptors fare well in the area too. Kestrel and Buzzard make regular appearances, Red Kite and Merlin are a possibility and Montagu's Harrier has been noted on rare occasions.

Wintertime at Liddington Hill is a great place for finch and thrush flocks. Redwings and Fieldfares from Scandinavia form large mobile parties, fliting through the berry trees and bushes which line the flanks of the hill. Linnets congregate in seizable groups and are often accompanied by Goldfinches and Chaffinches - which are also very numerous. Corn Buntings and Yellowhammers are another speciality of the area, often in good numbers.

Access can be gained from the Ridgeway and other footpaths, which in turn form part of the Aldbourne Circular Walk. The usual point of entry is from the minor road leading to Folly Farm.