This article is about the Class III road numbered C19 maintained by West Lothian Council. For other roads numbered C19, see C19.
The C19 starts at the eastern end of Linlithgow town centre, at a signalised junction on the B9080 next to the railway bridge. At first, it heads west, alongside the railway, following Back Station Road, before forking left onto Manse Road which soon turns south, climbing steeply across the canal. Leaving the town behind, the route curves south east then east at Riccarton, reaching the B8046 below Tor Hill. This is as far as the route appears to go, based on the data on the council website. However, the distance stated is 10.2km, which suggests that the C19 continues, after a short dogleg to the south, from the B8046 to reach the B8020 at Winchburgh.