sentences:  The Brackenburn near Kilmaurs has been misnamed as the Garrier by the Ordnance Survey since the 1860s.When burns or rivers join it is usually the largest that decides the name of the river downstream, unless the name changes completely, such as the Kilmarnock Water forming from the Fenwick and Craufurdland Waters.Occasionally a water course is reduced in volume due to changes upstream, a case in point being the Garrier, which used to drain Buiston Loch near Kilmaurs.