Harthill is a rural village in North Lanarkshire in Scotland, on the border with the neighbouring county of West Lothian about halfway between Glasgow (21 mi [34 km]) and Edinburgh (25 mi [40 km]) It lies on the River Almond about 2.5 mi (4.0 km) west of the small town of Whitburn. The closest major towns are Bathgate (6 mi [9.7 km]) and Livingston (10 mi [16 km]). Major towns within North Lanarkshire, such as Wishaw, Airdrie, Motherwell, Coatbridge and Bellshill are all around 10 to 15 mi (16 to 24 km) to the west. It is sometimes considered an isogloss, as it is around here that there is a distinct change from West Central Scots to East Central Scots. The M8 motorway bypasses the village and has a service station named after it.