A prominent hill of West Lothian, Dechmont Law rises to 217m (711 feet) ¾ mile (1.25 km) southwest of Dechmont and 1½ miles (2.5 km) north northwest of Livingston. Surrounded by Dechmont Law Park, the hill represents the remains of a volcanic plug dating from Carboniferous times.
An event in 1979, where a local man was 'assaulted' by a UFO on the slopes of Dechmont Hill has become known as the Livingston Incident. The incident has never been explained despite extensive investigations by the authorities.