 There is also use of this term to apply to areas around the River Severn as far south as Gloucester, and as far north as Ironbridge.To the north of Bridgnorth, the area around the river becomes much steeper and is known as Ironbridge Gorge.From Stourport on Severn south to Gloucester, the riverside has a much larger flood plain and loses its distinctive "valley" hillsides found a few miles north in Bewdley.