The Lugton Water, the largest tributary of the River Garnock, runs 14 miles (23 km) from Loch Libo (395 feet above sea-level) in Uplawmoor, through Lugton and the parishes of Neilston, Beith, Dunlop, Stewarton and Kilwinning. The Lugton joins the Garnock below the tidal limit, shortly after passing through Eglinton Country Park, developed around the ancient estate of the Earl of Eglinton. Timothy Pont refers to it as the 'Ludgar' or 'Lugdurr'. Loch Libo in the 14th century was referred to as Loch le Bog Syde in a charter, meaning the Bogside Loch.