sentences:  The River Stour flows through Haden Hill, and formed the historic county boundary of Staffordshire (Cradley Heath) and Shropshire (Halesowen).The Halesowen side of the river later became part of Worcestershire, and in 1966 all of Haden Hill was moved into Worcestershire when the Staffordshire side of the river (originally in Rowley Regis Borough) became part of Warley County Borough.Since 1974, all of Haden Hill has existed within the West Midlands county, though it is still split over two different local authorities, with Halesowen now being part of the Metropolitan Borough of Dudley and Cradley Heath being part of the Metropolitan Borough of Sandwell.