hartshead moor top is a hamlet in the county of west yorkshire, england, halfway between brighouse and cleckheaton on the a643. it is close to the hartshead moor services on the m62 motorway. in 1974 the service station was near the scene of a provisional irish republican army attack on a coach carrying soldiers and their children, killing twelve. there is a plaque in the entrance to the west-bound section commemorating those who died.