sentences:  The 1860 OS marks 'Boyd's Hill' and 'Boyd's slack' (Scots for a narrow pass) to the north of Craignaught on the old lane to Grange Farm, now named South Grange.Boyd's Hill has been undamaged (2007) by the quarrying and domestic waste disposal operations and the Boyd's slack is also clearly identifiable.A little below the watermeetings of the Irvine and the Kilmarnock Water took place a pivotal incident in 1297, which led to the Scottish Nation regaining its independence following what was effectively its conquest by Edward I of England.